404243672 has 16 divisors (see below), whose sum is σ = 866236560. Its totient is φ = 173247264.

The previous prime is 404243647. The next prime is 404243687. The reversal of 404243672 is 276342404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3609263 + ... + 3609374.

It is an arithmetic number, because the mean of its divisors is an integer number (54139785).

Almost surely, 2^404243672 is an apocalyptic number.

It is an amenable number.

404243672 is an abundant number, since it is smaller than the sum of its proper divisors (461992888).

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

404243672 is a wasteful number, since it uses less digits than its factorization.

404243672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7218650 (or 7218646 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 32.

The square root of 404243672 is about 20105.8118960663. The cubic root of 404243672 is about 739.4027759868.

The spelling of 404243672 in words is "four hundred four million, two hundred forty-three thousand, six hundred seventy-two".