2490076638 has 48 divisors (see below), whose sum is σ = 6297108480. Its totient is φ = 696311568.

The previous prime is 2490076627. The next prime is 2490076691. The reversal of 2490076638 is 8366700942.

2490076638 is a `hidden beast` number, since 2 + 4 + 9 + 0 + 0 + 7 + 6 + 638 = 666.

It is a super-2 number, since 2×2490076638² = 12400963326226766088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2490076593 and 2490076602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 204318 + ... + 216161.

It is an arithmetic number, because the mean of its divisors is an integer number (131189760).

Almost surely, 2^2490076638 is an apocalyptic number.

2490076638 is an abundant number, since it is smaller than the sum of its proper divisors (3807031842).

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

2490076638 is a wasteful number, since it uses less digits than its factorization.

2490076638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420541 (or 420538 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 2490076638 is about 49900.6677109635. The cubic root of 2490076638 is about 1355.4106838275.

The spelling of 2490076638 in words is "two billion, four hundred ninety million, seventy-six thousand, six hundred thirty-eight".