404443972 has 6 divisors (see below), whose sum is σ = 707776958. Its totient is φ = 202221984.

The previous prime is 404443951. The next prime is 404443973. The reversal of 404443972 is 279344404.

It can be written as a sum of positive squares in only one way, i.e., 208051776 + 196392196 = 14424^2 + 14014^2 .

It is not an unprimeable number, because it can be changed into a prime (404443973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50555493 + ... + 50555500.

Almost surely, 2^404443972 is an apocalyptic number.

It is an amenable number.

404443972 is a deficient number, since it is larger than the sum of its proper divisors (303332986).

404443972 is a wasteful number, since it uses less digits than its factorization.

404443972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101110997 (or 101110995 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 37.

The square root of 404443972 is about 20110.7924259588. The cubic root of 404443972 is about 739.5248788436.

The spelling of 404443972 in words is "four hundred four million, four hundred forty-three thousand, nine hundred seventy-two".