2390856 has 64 divisors (see below), whose sum is σ = 6585600. Its totient is φ = 718848.

The previous prime is 2390849. The next prime is 2390879. The reversal of 2390856 is 6580932.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24600 + ... + 24696.

It is an arithmetic number, because the mean of its divisors is an integer number (102900).

2^2390856 is an apocalyptic number.

2390856 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2390856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3292800).

2390856 is an abundant number, since it is smaller than the sum of its proper divisors (4194744).

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

2390856 is a wasteful number, since it uses less digits than its factorization.

2390856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198 (or 194 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 2390856 is about 1546.2393087747. The cubic root of 2390856 is about 133.7163376432.

The spelling of 2390856 in words is "two million, three hundred ninety thousand, eight hundred fifty-six".