404404012 has 12 divisors (see below), whose sum is σ = 708858360. Its totient is φ = 201873056.

The previous prime is 404404003. The next prime is 404404031. The reversal of 404404012 is 210404404.

It is a super-2 number, since 2×404404012² = 327085209843392288, which contains 22 as substring.

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, 79462 + ... + 84397.

It is an arithmetic number, because the mean of its divisors is an integer number (59071530).

Almost surely, 2^404404012 is an apocalyptic number.

It is an amenable number.

404404012 is a deficient number, since it is larger than the sum of its proper divisors (304454348).

404404012 is a wasteful number, since it uses less digits than its factorization.

404404012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164480 (or 164478 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 404404012 is about 20109.7989050115. The cubic root of 404404012 is about 739.5005224518.

Adding to 404404012 its reverse (210404404), we get a palindrome (614808416).

The spelling of 404404012 in words is "four hundred four million, four hundred four thousand, twelve".