90902412 has 72 divisors (see below), whose sum is σ = 244210512. Its totient is φ = 29548800.

The previous prime is 90902381. The next prime is 90902423. The reversal of 90902412 is 21420909.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38712 + ... + 40992.

Almost surely, 2^90902412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90902412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122105256).

90902412 is an abundant number, since it is smaller than the sum of its proper divisors (153308100).

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

90902412 is a wasteful number, since it uses less digits than its factorization.

90902412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2341 (or 2327 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 90902412 is about 9534.2756410752. The cubic root of 90902412 is about 449.6333012635.

The spelling of 90902412 in words is "ninety million, nine hundred two thousand, four hundred twelve".