621364332 has 12 divisors (see below), whose sum is σ = 1449850136. Its totient is φ = 207121440.

The previous prime is 621364321. The next prime is 621364339. The reversal of 621364332 is 233463126.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 621364332.

It is not an unprimeable number, because it can be changed into a prime (621364339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25890169 + ... + 25890192.

Almost surely, 2^621364332 is an apocalyptic number.

It is an amenable number.

621364332 is an abundant number, since it is smaller than the sum of its proper divisors (828485804).

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

621364332 is a wasteful number, since it uses less digits than its factorization.

621364332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51780368 (or 51780366 counting only the distinct ones).

The product of its digits is 15552, while the sum is 30.

The square root of 621364332 is about 24927.1805866608. The cubic root of 621364332 is about 853.3269070290.

The spelling of 621364332 in words is "six hundred twenty-one million, three hundred sixty-four thousand, three hundred thirty-two".