404903212 has 24 divisors (see below), whose sum is σ = 857443104. Its totient is φ = 163322112.

The previous prime is 404903209. The next prime is 404903227. The reversal of 404903212 is 212309404.

It is a super-2 number, since 2×404903212² = 327893222175833888, which contains 22 as substring.

It is an unprimeable number.

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, 424843 + ... + 425794.

It is an arithmetic number, because the mean of its divisors is an integer number (35726796).

Almost surely, 2^404903212 is an apocalyptic number.

It is an amenable number.

404903212 is an abundant number, since it is smaller than the sum of its proper divisors (452539892).

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

404903212 is a wasteful number, since it uses less digits than its factorization.

404903212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850665 (or 850663 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 404903212 is about 20122.2069366161. The cubic root of 404903212 is about 739.8046793975.

The spelling of 404903212 in words is "four hundred four million, nine hundred three thousand, two hundred twelve".