90202672 has 20 divisors (see below), whose sum is σ = 199734736. Its totient is φ = 38658240.

The previous prime is 90202601. The next prime is 90202741. The reversal of 90202672 is 27620209.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 90202672.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 402579 + ... + 402802.

Almost surely, 2^90202672 is an apocalyptic number.

It is an amenable number.

90202672 is an abundant number, since it is smaller than the sum of its proper divisors (109532064).

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

90202672 is a wasteful number, since it uses less digits than its factorization.

90202672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805396 (or 805390 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 90202672 is about 9497.5087259765. The cubic root of 90202672 is about 448.4766133018.

The spelling of 90202672 in words is "ninety million, two hundred two thousand, six hundred seventy-two".