344445664 has 24 divisors (see below), whose sum is σ = 685752480. Its totient is φ = 170286336.

The previous prime is 344445643. The next prime is 344445701. The reversal of 344445664 is 466544443.

344445664 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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, 57624 + ... + 63319.

It is an arithmetic number, because the mean of its divisors is an integer number (28573020).

Almost surely, 2^344445664 is an apocalyptic number.

It is an amenable number.

344445664 is a deficient number, since it is larger than the sum of its proper divisors (341306816).

344445664 is a wasteful number, since it uses less digits than its factorization.

344445664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121042 (or 121034 counting only the distinct ones).

The product of its digits is 552960, while the sum is 40.

The square root of 344445664 is about 18559.2473985342. The cubic root of 344445664 is about 700.9820664614.

The spelling of 344445664 in words is "three hundred forty-four million, four hundred forty-five thousand, six hundred sixty-four".