2490856 has 16 divisors (see below), whose sum is σ = 4687200. Its totient is φ = 1240944.

The previous prime is 2490847. The next prime is 2490869. The reversal of 2490856 is 6580942.

It is a happy number.

It is a super-2 number, since 2×2490856² = 12408727225472, which contains 22 as substring.

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, 3715 + ... + 4333.

It is an arithmetic number, because the mean of its divisors is an integer number (292950).

2^2490856 is an apocalyptic number.

It is an amenable number.

2490856 is a deficient number, since it is larger than the sum of its proper divisors (2196344).

2490856 is a wasteful number, since it uses less digits than its factorization.

2490856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128 (or 1124 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 2490856 is about 1578.2445944783. The cubic root of 2490856 is about 135.5552077788. Note that the first 3 decimals are identical.

It can be divided in two parts, 24908 and 56, that added together give a square (24964 = 158²).

The spelling of 2490856 in words is "two million, four hundred ninety thousand, eight hundred fifty-six".