2390844 has 24 divisors (see below), whose sum is σ = 5759488. Its totient is φ = 771120.

The previous prime is 2390831. The next prime is 2390849. The reversal of 2390844 is 4480932.

It is a happy number.

It is a super-2 number, since 2×2390844² = 11432270064672, which contains 22 as substring.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2390849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2842 + ... + 3585.

2^2390844 is an apocalyptic number.

It is an amenable number.

2390844 is an abundant number, since it is smaller than the sum of its proper divisors (3368644).

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

2390844 is a wasteful number, since it uses less digits than its factorization.

2390844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6465 (or 6463 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 2390844 is about 1546.2354283873. The cubic root of 2390844 is about 133.7161139299.

The spelling of 2390844 in words is "two million, three hundred ninety thousand, eight hundred forty-four".