2390031 has 24 divisors (see below), whose sum is σ = 4018560. Its totient is φ = 1340496.

The previous prime is 2390023. The next prime is 2390033. The reversal of 2390031 is 1300932.

It is not a de Polignac number, because 2390031 - 2³ = 2390023 is a prime.

It is a super-2 number, since 2×2390031² = 11424496361922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2389986 and 2390013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2390033) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3396 + ... + 4038.

It is an arithmetic number, because the mean of its divisors is an integer number (167440).

2^2390031 is an apocalyptic number.

2390031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2390031 is a deficient number, since it is larger than the sum of its proper divisors (1628529).

2390031 is a wasteful number, since it uses less digits than its factorization.

2390031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715 (or 712 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 2390031 is about 1545.9725094580. The cubic root of 2390031 is about 133.7009556113.

Adding to 2390031 its reverse (1300932), we get a palindrome (3690963).

The spelling of 2390031 in words is "two million, three hundred ninety thousand, thirty-one".