90402412 has 6 divisors (see below), whose sum is σ = 158204228. Its totient is φ = 45201204.

The previous prime is 90402407. The next prime is 90402421. The reversal of 90402412 is 21420409.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11300298 + ... + 11300305.

Almost surely, 2^90402412 is an apocalyptic number.

It is an amenable number.

90402412 is a deficient number, since it is larger than the sum of its proper divisors (67801816).

90402412 is a wasteful number, since it uses less digits than its factorization.

90402412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22600607 (or 22600605 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 90402412 is about 9508.0183003610. The cubic root of 90402412 is about 448.8073968530.

The spelling of 90402412 in words is "ninety million, four hundred two thousand, four hundred twelve".