2990439 has 10 divisors (see below), whose sum is σ = 4467320. Its totient is φ = 1993572.

The previous prime is 2990423. The next prime is 2990441. The reversal of 2990439 is 9340992.

It is not a de Polignac number, because 2990439 - 2⁴ = 2990423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2990459) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 18379 + ... + 18540.

It is an arithmetic number, because the mean of its divisors is an integer number (446732).

2^2990439 is an apocalyptic number.

2990439 is a deficient number, since it is larger than the sum of its proper divisors (1476881).

2990439 is an equidigital number, since it uses as much as digits as its factorization.

2990439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36931 (or 36922 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 2990439 is about 1729.2885820475. The cubic root of 2990439 is about 144.0715789972.

The spelling of 2990439 in words is "two million, nine hundred ninety thousand, four hundred thirty-nine".