404031212 has 12 divisors (see below), whose sum is σ = 761443536. Its totient is φ = 186475920.

The previous prime is 404031211. The next prime is 404031227. The reversal of 404031212 is 212130404.

It is not an unprimeable number, because it can be changed into a prime (404031211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3884864 + ... + 3884967.

It is an arithmetic number, because the mean of its divisors is an integer number (63453628).

Almost surely, 2^404031212 is an apocalyptic number.

It is an amenable number.

404031212 is a deficient number, since it is larger than the sum of its proper divisors (357412324).

404031212 is a wasteful number, since it uses less digits than its factorization.

404031212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7769848 (or 7769846 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 404031212 is about 20100.5276547657. The cubic root of 404031212 is about 739.2732163061.

Adding to 404031212 its reverse (212130404), we get a palindrome (616161616).

The spelling of 404031212 in words is "four hundred four million, thirty-one thousand, two hundred twelve".