2398692639 has 80 divisors (see below), whose sum is σ = 4162510080. Its totient is φ = 1220970240.

The previous prime is 2398692623. The next prime is 2398692641. The reversal of 2398692639 is 9362968932.

It is not a de Polignac number, because 2398692639 - 2⁴ = 2398692623 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2398692649) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2326054 + ... + 2327084.

It is an arithmetic number, because the mean of its divisors is an integer number (52031376).

Almost surely, 2^2398692639 is an apocalyptic number.

2398692639 is a deficient number, since it is larger than the sum of its proper divisors (1763817441).

2398692639 is a wasteful number, since it uses less digits than its factorization.

2398692639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1098 (or 1077 counting only the distinct ones).

The product of its digits is 7558272, while the sum is 57.

The square root of 2398692639 is about 48976.4498407143. The cubic root of 2398692639 is about 1338.6227475270.

The spelling of 2398692639 in words is "two billion, three hundred ninety-eight million, six hundred ninety-two thousand, six hundred thirty-nine".