621454152 has 32 divisors (see below), whose sum is σ = 1694875680. Its totient is φ = 188319360.

The previous prime is 621454087. The next prime is 621454177. The reversal of 621454152 is 251454126.

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, 1176733 + ... + 1177260.

It is an arithmetic number, because the mean of its divisors is an integer number (52964865).

Almost surely, 2^621454152 is an apocalyptic number.

It is an amenable number.

621454152 is an abundant number, since it is smaller than the sum of its proper divisors (1073421528).

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

621454152 is a wasteful number, since it uses less digits than its factorization.

621454152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2354013 (or 2354009 counting only the distinct ones).

The product of its digits is 9600, while the sum is 30.

The square root of 621454152 is about 24928.9821693546. The cubic root of 621454152 is about 853.3680220002.

The spelling of 621454152 in words is "six hundred twenty-one million, four hundred fifty-four thousand, one hundred fifty-two".