2138300670 has 128 divisors (see below), whose sum is σ = 5830963200. Its totient is φ = 497249280.

The previous prime is 2138300653. The next prime is 2138300683. The reversal of 2138300670 is 760038312.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 890131 + ... + 892529.

It is an arithmetic number, because the mean of its divisors is an integer number (45554400).

Almost surely, 2^2138300670 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2138300670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2915481600).

2138300670 is an abundant number, since it is smaller than the sum of its proper divisors (3692662530).

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

2138300670 is a wasteful number, since it uses less digits than its factorization.

2138300670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2530.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 2138300670 is about 46241.7632665538. The cubic root of 2138300670 is about 1288.3175530784.

Adding to 2138300670 its reverse (760038312), we get a palindrome (2898338982).

The spelling of 2138300670 in words is "two billion, one hundred thirty-eight million, three hundred thousand, six hundred seventy".