621374000 has 80 divisors (see below), whose sum is σ = 1618125600. Its totient is φ = 229420800.

The previous prime is 621373979. The next prime is 621374023. The reversal of 621374000 is 473126.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×621374000² = 772211295752000000, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 14051 + ... + 37949.

It is an arithmetic number, because the mean of its divisors is an integer number (20226570).

Almost surely, 2^621374000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 621374000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (809062800).

621374000 is an abundant number, since it is smaller than the sum of its proper divisors (996751600).

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

621374000 is a wasteful number, since it uses less digits than its factorization.

621374000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23935 (or 23919 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 621374000 is about 24927.3745107663. The cubic root of 621374000 is about 853.3313327319.

The spelling of 621374000 in words is "six hundred twenty-one million, three hundred seventy-four thousand".