344621408 has 24 divisors (see below), whose sum is σ = 680207472. Its totient is φ = 171870336.

The previous prime is 344621377. The next prime is 344621461. The reversal of 344621408 is 804126443.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 860 + ... + 26267.

It is an arithmetic number, because the mean of its divisors is an integer number (28341978).

Almost surely, 2^344621408 is an apocalyptic number.

It is an amenable number.

344621408 is a deficient number, since it is larger than the sum of its proper divisors (335586064).

344621408 is a wasteful number, since it uses less digits than its factorization.

344621408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27534 (or 27526 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 344621408 is about 18563.9814695016. The cubic root of 344621408 is about 701.1012651809.

The spelling of 344621408 in words is "three hundred forty-four million, six hundred twenty-one thousand, four hundred eight".