3390439 has 16 divisors (see below), whose sum is σ = 3870720. Its totient is φ = 2947680.

The previous prime is 3390437. The next prime is 3390461. The reversal of 3390439 is 9340933.

It is a cyclic number.

It is not a de Polignac number, because 3390439 - 2¹ = 3390437 is a prime.

It is a super-2 number, since 2×3390439² = 22990153225442, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3390439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3390437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18852 + ... + 19030.

It is an arithmetic number, because the mean of its divisors is an integer number (241920).

Almost surely, 2^3390439 is an apocalyptic number.

3390439 is a deficient number, since it is larger than the sum of its proper divisors (480281).

3390439 is a wasteful number, since it uses less digits than its factorization.

3390439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270.

The product of its (nonzero) digits is 8748, while the sum is 31.

The square root of 3390439 is about 1841.3144761284. The cubic root of 3390439 is about 150.2283780393.

The spelling of 3390439 in words is "three million, three hundred ninety thousand, four hundred thirty-nine".