404940912 has 40 divisors (see below), whose sum is σ = 1054099200. Its totient is φ = 133947840.

The previous prime is 404940911. The next prime is 404940947. The reversal of 404940912 is 219049404.

It is a super-2 number, since 2×404940912² = 327954284422783488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404940911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25912 + ... + 38487.

It is an arithmetic number, because the mean of its divisors is an integer number (26352480).

Almost surely, 2^404940912 is an apocalyptic number.

It is an amenable number.

404940912 is an abundant number, since it is smaller than the sum of its proper divisors (649158288).

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

404940912 is a wasteful number, since it uses less digits than its factorization.

404940912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64541 (or 64535 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 404940912 is about 20123.1436907855. The cubic root of 404940912 is about 739.8276394284.

The spelling of 404940912 in words is "four hundred four million, nine hundred forty thousand, nine hundred twelve".