344401872 has 20 divisors (see below), whose sum is σ = 889704960. Its totient is φ = 114800608.

The previous prime is 344401831. The next prime is 344401879. The reversal of 344401872 is 278104443.

It is a super-2 number, since 2×344401872² = 237225298874208768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344401879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3587472 + ... + 3587567.

It is an arithmetic number, because the mean of its divisors is an integer number (44485248).

Almost surely, 2^344401872 is an apocalyptic number.

It is an amenable number.

344401872 is an abundant number, since it is smaller than the sum of its proper divisors (545303088).

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

344401872 is a wasteful number, since it uses less digits than its factorization.

344401872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7175050 (or 7175044 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 344401872 is about 18558.0675718136. The cubic root of 344401872 is about 700.9523581398.

The spelling of 344401872 in words is "three hundred forty-four million, four hundred one thousand, eight hundred seventy-two".