2138469570 has 144 divisors (see below), whose sum is σ = 6065504640. Its totient is φ = 521265024.

The previous prime is 2138469563. The next prime is 2138469577. The reversal of 2138469570 is 759648312.

2138469570 is a `hidden beast` number, since 2 + 1 + 38 + 46 + 9 + 570 = 666.

2138469570 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2138469563) and next prime (2138469577).

It is a Harshad number since it is a multiple of its sum of digits (45).

2138469570 is strictly pandigital in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2138469577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1437367 + ... + 1438853.

It is an arithmetic number, because the mean of its divisors is an integer number (42121560).

It is a 1-persistent number, because it is pandigital, but 2⋅2138469570 = 4276939140 is not.

Almost surely, 2^2138469570 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2138469570, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3032752320).

2138469570 is an abundant number, since it is smaller than the sum of its proper divisors (3927035070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2138469570 is a wasteful number, since it uses less digits than its factorization.

2138469570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1577 (or 1545 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 2138469570 is about 46243.5895016812. The cubic root of 2138469570 is about 1288.3514727089.

The spelling of 2138469570 in words is "two billion, one hundred thirty-eight million, four hundred sixty-nine thousand, five hundred seventy".