404456212 has 12 divisors (see below), whose sum is σ = 713202336. Its totient is φ = 200684120.

The previous prime is 404456191. The next prime is 404456233. The reversal of 404456212 is 212654404.

It is an interprime number because it is at equal distance from previous prime (404456191) and next prime (404456233).

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 385408 + ... + 386455.

It is an arithmetic number, because the mean of its divisors is an integer number (59433528).

Almost surely, 2^404456212 is an apocalyptic number.

It is an amenable number.

404456212 is a deficient number, since it is larger than the sum of its proper divisors (308746124).

404456212 is a wasteful number, since it uses less digits than its factorization.

404456212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771998 (or 771996 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 404456212 is about 20111.0967378709. The cubic root of 404456212 is about 739.5323390390.

The spelling of 404456212 in words is "four hundred four million, four hundred fifty-six thousand, two hundred twelve".