2138965470 has 96 divisors (see below), whose sum is σ = 6056013600. Its totient is φ = 521724672.

The previous prime is 2138965463. The next prime is 2138965471. The reversal of 2138965470 is 745698312.

2138965470 is a `hidden beast` number, since 2 + 13 + 8 + 96 + 547 + 0 = 666.

2138965470 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×2138965470³ (a number of 29 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

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

2138965470 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 (2138965471) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28024 + ... + 71156.

It is an arithmetic number, because the mean of its divisors is an integer number (63083475).

It is a 1-persistent number, because it is pandigital, but 2⋅2138965470 = 4277930940 is not.

Almost surely, 2^2138965470 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2138965470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3028006800).

2138965470 is an abundant number, since it is smaller than the sum of its proper divisors (3917048130).

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

2138965470 is a wasteful number, since it uses less digits than its factorization.

2138965470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43194 (or 43191 counting only the distinct ones).

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

The square root of 2138965470 is about 46248.9510151311. The cubic root of 2138965470 is about 1288.4510523530.

The spelling of 2138965470 in words is "two billion, one hundred thirty-eight million, nine hundred sixty-five thousand, four hundred seventy".