404189268 has 24 divisors (see below), whose sum is σ = 1077838272. Its totient is φ = 115482624.

The previous prime is 404189257. The next prime is 404189309. The reversal of 404189268 is 862981404.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2405805 + ... + 2405972.

It is an arithmetic number, because the mean of its divisors is an integer number (44909928).

Almost surely, 2^404189268 is an apocalyptic number.

It is an amenable number.

404189268 is an abundant number, since it is smaller than the sum of its proper divisors (673649004).

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

404189268 is a wasteful number, since it uses less digits than its factorization.

404189268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4811791 (or 4811789 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 404189268 is about 20104.4589084113. The cubic root of 404189268 is about 739.3696043496.

The spelling of 404189268 in words is "four hundred four million, one hundred eighty-nine thousand, two hundred sixty-eight".