621560230 has 16 divisors (see below), whose sum is σ = 1154899584. Its totient is φ = 240603840.

The previous prime is 621560207. The next prime is 621560249. The reversal of 621560230 is 32065126.

It is a junction number, because it is equal to n+sod(n) for n = 621560195 and 621560204.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1002207 + ... + 1002826.

It is an arithmetic number, because the mean of its divisors is an integer number (72181224).

Almost surely, 2^621560230 is an apocalyptic number.

621560230 is a deficient number, since it is larger than the sum of its proper divisors (533339354).

621560230 is a wasteful number, since it uses less digits than its factorization.

621560230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2005071.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 621560230 is about 24931.1096824830. The cubic root of 621560230 is about 853.4165739450.

The spelling of 621560230 in words is "six hundred twenty-one million, five hundred sixty thousand, two hundred thirty".