2598531920 has 20 divisors (see below), whose sum is σ = 6041586900. Its totient is φ = 1039412736.

The previous prime is 2598531917. The next prime is 2598531931. The reversal of 2598531920 is 291358952.

It can be written as a sum of positive squares in 2 ways, for example, as 640292416 + 1958239504 = 25304^2 + 44252^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16240745 + ... + 16240904.

It is an arithmetic number, because the mean of its divisors is an integer number (302079345).

Almost surely, 2^2598531920 is an apocalyptic number.

2598531920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2598531920 is an abundant number, since it is smaller than the sum of its proper divisors (3443054980).

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

2598531920 is a wasteful number, since it uses less digits than its factorization.

2598531920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32481662 (or 32481656 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 44.

The square root of 2598531920 is about 50975.7973944498. The cubic root of 2598531920 is about 1374.8100092313.

The spelling of 2598531920 in words is "two billion, five hundred ninety-eight million, five hundred thirty-one thousand, nine hundred twenty".