2500863400 has 48 divisors (see below), whose sum is σ = 6645155040. Its totient is φ = 857438400.

The previous prime is 2500863331. The next prime is 2500863413. The reversal of 2500863400 is 43680052.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 891766 + ... + 894565.

It is an arithmetic number, because the mean of its divisors is an integer number (138440730).

Almost surely, 2^2500863400 is an apocalyptic number.

2500863400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2500863400 is an abundant number, since it is smaller than the sum of its proper divisors (4144291640).

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

2500863400 is a wasteful number, since it uses less digits than its factorization.

2500863400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1786354 (or 1786345 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 2500863400 is about 50008.6332546691. The cubic root of 2500863400 is about 1357.3650321923.

The spelling of 2500863400 in words is "two billion, five hundred million, eight hundred sixty-three thousand, four hundred".