621980336 has 10 divisors (see below), whose sum is σ = 1205086932. Its totient is φ = 310990160.

The previous prime is 621980299. The next prime is 621980347. The reversal of 621980336 is 633089126.

It is a self number, because there is not a number n which added to its sum of digits gives 621980336.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19436870 + ... + 19436901.

Almost surely, 2^621980336 is an apocalyptic number.

It is an amenable number.

621980336 is a deficient number, since it is larger than the sum of its proper divisors (583106596).

621980336 is a wasteful number, since it uses less digits than its factorization.

621980336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38873779 (or 38873773 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 621980336 is about 24939.5335962804. The cubic root of 621980336 is about 853.6088023951.

The spelling of 621980336 in words is "six hundred twenty-one million, nine hundred eighty thousand, three hundred thirty-six".