621070472 has 32 divisors (see below), whose sum is σ = 1325609280. Its totient is φ = 270029760.

The previous prime is 621070453. The next prime is 621070481. The reversal of 621070472 is 274070126.

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, 151403 + ... + 155450.

It is an arithmetic number, because the mean of its divisors is an integer number (41425290).

Almost surely, 2^621070472 is an apocalyptic number.

It is an amenable number.

621070472 is an abundant number, since it is smaller than the sum of its proper divisors (704538808).

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

621070472 is a wasteful number, since it uses less digits than its factorization.

621070472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306893 (or 306889 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 621070472 is about 24921.2855206147. The cubic root of 621070472 is about 853.1923653586.

The spelling of 621070472 in words is "six hundred twenty-one million, seventy thousand, four hundred seventy-two".