621272630 has 16 divisors (see below), whose sum is σ = 1219953744. Its totient is φ = 225917280.

The previous prime is 621272629. The next prime is 621272651. The reversal of 621272630 is 36272126.

It is a junction number, because it is equal to n+sod(n) for n = 621272593 and 621272602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2823857 + ... + 2824076.

It is an arithmetic number, because the mean of its divisors is an integer number (76247109).

Almost surely, 2^621272630 is an apocalyptic number.

621272630 is a deficient number, since it is larger than the sum of its proper divisors (598681114).

621272630 is a wasteful number, since it uses less digits than its factorization.

621272630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5647951.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 621272630 is about 24925.3411210358. The cubic root of 621272630 is about 853.2849264872.

The spelling of 621272630 in words is "six hundred twenty-one million, two hundred seventy-two thousand, six hundred thirty".