2389928634 has 24 divisors (see below), whose sum is σ = 5179116852. Its totient is φ = 796498560.

The previous prime is 2389928587. The next prime is 2389928693. The reversal of 2389928634 is 4368299832.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1986039225 + 403889409 = 44565^2 + 20097^2 .

It is a super-2 number, since 2×2389928634² = 11423517751226211912, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 146722 + ... + 162194.

Almost surely, 2^2389928634 is an apocalyptic number.

2389928634 is an abundant number, since it is smaller than the sum of its proper divisors (2789188218).

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

2389928634 is a wasteful number, since it uses less digits than its factorization.

2389928634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24062 (or 24059 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 54.

The square root of 2389928634 is about 48886.8963424761. The cubic root of 2389928634 is about 1336.9904676193.

The spelling of 2389928634 in words is "two billion, three hundred eighty-nine million, nine hundred twenty-eight thousand, six hundred thirty-four".