90646452 has 60 divisors (see below), whose sum is σ = 255207876. Its totient is φ = 27889920.

The previous prime is 90646447. The next prime is 90646469. The reversal of 90646452 is 25464609.

90646452 is a `hidden beast` number, since 9 + 0 + 6 + 4 + 645 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 28772496 + 61873956 = 5364^2 + 7866^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6549 + ... + 14972.

Almost surely, 2^90646452 is an apocalyptic number.

It is an amenable number.

90646452 is an abundant number, since it is smaller than the sum of its proper divisors (164561424).

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

90646452 is a wasteful number, since it uses less digits than its factorization.

90646452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21550 (or 21539 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 90646452 is about 9520.8430299002. The cubic root of 90646452 is about 449.2108836876.

The spelling of 90646452 in words is "ninety million, six hundred forty-six thousand, four hundred fifty-two".