621226930 has 32 divisors (see below), whose sum is σ = 1142294400. Its totient is φ = 243176832.

The previous prime is 621226919. The next prime is 621226943. The reversal of 621226930 is 39622126.

It is a junction number, because it is equal to n+sod(n) for n = 621226892 and 621226901.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135211 + ... + 139729.

It is an arithmetic number, because the mean of its divisors is an integer number (35696700).

Almost surely, 2^621226930 is an apocalyptic number.

621226930 is a deficient number, since it is larger than the sum of its proper divisors (521067470).

621226930 is a wasteful number, since it uses less digits than its factorization.

621226930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4818.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 621226930 is about 24924.4243664723. The cubic root of 621226930 is about 853.2640038008.

The spelling of 621226930 in words is "six hundred twenty-one million, two hundred twenty-six thousand, nine hundred thirty".