444555972 has 48 divisors (see below), whose sum is σ = 1317205120. Its totient is φ = 127015776.

The previous prime is 444555961. The next prime is 444556037. The reversal of 444555972 is 279555444.

444555972 is a `hidden beast` number, since 4 + 4 + 4 + 55 + 597 + 2 = 666.

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, 293263 + ... + 294774.

Almost surely, 2^444555972 is an apocalyptic number.

444555972 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

444555972 is an abundant number, since it is smaller than the sum of its proper divisors (872649148).

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

444555972 is a wasteful number, since it uses less digits than its factorization.

444555972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588057 (or 588049 counting only the distinct ones).

The product of its digits is 1008000, while the sum is 45.

The square root of 444555972 is about 21084.4960101018. The cubic root of 444555972 is about 763.2066566209.

The spelling of 444555972 in words is "four hundred forty-four million, five hundred fifty-five thousand, nine hundred seventy-two".