404031412 has 12 divisors (see below), whose sum is σ = 710015040. Its totient is φ = 201169976.

The previous prime is 404031403. The next prime is 404031457. The reversal of 404031412 is 214130404.

It is a self number, because there is not a number n which added to its sum of digits gives 404031412.

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, 210358 + ... + 212269.

It is an arithmetic number, because the mean of its divisors is an integer number (59167920).

Almost surely, 2^404031412 is an apocalyptic number.

It is an amenable number.

404031412 is a deficient number, since it is larger than the sum of its proper divisors (305983628).

404031412 is a wasteful number, since it uses less digits than its factorization.

404031412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422870 (or 422868 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 404031412 is about 20100.5326297588. The cubic root of 404031412 is about 739.2733382889.

Adding to 404031412 its reverse (214130404), we get a palindrome (618161816).

The spelling of 404031412 in words is "four hundred four million, thirty-one thousand, four hundred twelve".