621229304 has 16 divisors (see below), whose sum is σ = 1165086720. Its totient is φ = 310539520.

The previous prime is 621229303. The next prime is 621229321. The reversal of 621229304 is 403922126.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (621229303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42824 + ... + 55464.

It is an arithmetic number, because the mean of its divisors is an integer number (72817920).

Almost surely, 2^621229304 is an apocalyptic number.

It is an amenable number.

621229304 is a deficient number, since it is larger than the sum of its proper divisors (543857416).

621229304 is a wasteful number, since it uses less digits than its factorization.

621229304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18790 (or 18786 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 621229304 is about 24924.4719903953. The cubic root of 621229304 is about 853.2650907069.

The spelling of 621229304 in words is "six hundred twenty-one million, two hundred twenty-nine thousand, three hundred four".