404403696 has 30 divisors (see below), whose sum is σ = 1131769080. Its totient is φ = 134801184.

The previous prime is 404403689. The next prime is 404403757. The reversal of 404403696 is 696304404.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 404403696.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1404036 + ... + 1404323.

It is an arithmetic number, because the mean of its divisors is an integer number (37725636).

Almost surely, 2^404403696 is an apocalyptic number.

It is an amenable number.

404403696 is an abundant number, since it is smaller than the sum of its proper divisors (727365384).

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

404403696 is a wasteful number, since it uses less digits than its factorization.

404403696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2808373 (or 2808364 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 404403696 is about 20109.7910481437. The cubic root of 404403696 is about 739.5003298373.

The spelling of 404403696 in words is "four hundred four million, four hundred three thousand, six hundred ninety-six".