2500390040 has 16 divisors (see below), whose sum is σ = 5625877680. Its totient is φ = 1000156000.

The previous prime is 2500390021. The next prime is 2500390069. The reversal of 2500390040 is 400930052.

It is a junction number, because it is equal to n+sod(n) for n = 2500389988 and 2500390015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31254836 + ... + 31254915.

It is an arithmetic number, because the mean of its divisors is an integer number (351617355).

Almost surely, 2^2500390040 is an apocalyptic number.

2500390040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2500390040 is an abundant number, since it is smaller than the sum of its proper divisors (3125487640).

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

2500390040 is a wasteful number, since it uses less digits than its factorization.

2500390040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62509762 (or 62509758 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 2500390040 is about 50003.9002478807. The cubic root of 2500390040 is about 1357.2793867236.

The spelling of 2500390040 in words is "two billion, five hundred million, three hundred ninety thousand, forty".