404402236 has 24 divisors (see below), whose sum is σ = 809432960. Its totient is φ = 173180592.

The previous prime is 404402233. The next prime is 404402237. The reversal of 404402236 is 632204404.

It is a self number, because there is not a number n which added to its sum of digits gives 404402236.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404402233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36655 + ... + 46393.

Almost surely, 2^404402236 is an apocalyptic number.

It is an amenable number.

404402236 is an abundant number, since it is smaller than the sum of its proper divisors (405030724).

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

404402236 is a wasteful number, since it uses less digits than its factorization.

404402236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11233 (or 11231 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 404402236 is about 20109.7547473857. The cubic root of 404402236 is about 739.4994399083.

The spelling of 404402236 in words is "four hundred four million, four hundred two thousand, two hundred thirty-six".