3390438 has 16 divisors (see below), whose sum is σ = 6798960. Its totient is φ = 1127136.

The previous prime is 3390437. The next prime is 3390461. The reversal of 3390438 is 8340933.

It is a happy number.

It is a super-2 number, since 2×3390438² = 22990139663688, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 3856 + ... + 4652.

It is an arithmetic number, because the mean of its divisors is an integer number (424935).

Almost surely, 2^3390438 is an apocalyptic number.

3390438 is an abundant number, since it is smaller than the sum of its proper divisors (3408522).

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

3390438 is a wasteful number, since it uses less digits than its factorization.

3390438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1511.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 3390438 is about 1841.3142045832. The cubic root of 3390438 is about 150.2283632695.

It can be divided in two parts, 3390 and 438, that added together give a triangular number (3828 = T₈₇).

The spelling of 3390438 in words is "three million, three hundred ninety thousand, four hundred thirty-eight".