2490705856 has 28 divisors (see below), whose sum is σ = 5057441752. Its totient is φ = 1216389888.

The previous prime is 2490705809. The next prime is 2490705859. The reversal of 2490705856 is 6585070942.

It is a super-2 number, since 2×2490705856² = 12407231322225385472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2490705859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 449775 + ... + 455278.

Almost surely, 2^2490705856 is an apocalyptic number.

It is an amenable number.

2490705856 is an abundant number, since it is smaller than the sum of its proper divisors (2566735896).

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

2490705856 is an equidigital number, since it uses as much as digits as its factorization.

2490705856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905108 (or 905098 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 46.

The square root of 2490705856 is about 49906.9720179455. The cubic root of 2490705856 is about 1355.5248405514.

The spelling of 2490705856 in words is "two billion, four hundred ninety million, seven hundred five thousand, eight hundred fifty-six".