404003312 has 20 divisors (see below), whose sum is σ = 797527080. Its totient is φ = 198189888.

The previous prime is 404003291. The next prime is 404003329. The reversal of 404003312 is 213300404.

It is a super-2 number, since 2×404003312² = 326437352213938688, which contains 22 as substring.

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, 237362 + ... + 239057.

It is an arithmetic number, because the mean of its divisors is an integer number (39876354).

Almost surely, 2^404003312 is an apocalyptic number.

It is an amenable number.

404003312 is a deficient number, since it is larger than the sum of its proper divisors (393523768).

404003312 is a wasteful number, since it uses less digits than its factorization.

404003312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476480 (or 476474 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 404003312 is about 20099.8336311523. The cubic root of 404003312 is about 739.2561993060.

Adding to 404003312 its reverse (213300404), we get a palindrome (617303716).

The spelling of 404003312 in words is "four hundred four million, three thousand, three hundred twelve".