90804272 has 40 divisors (see below), whose sum is σ = 190456560. Its totient is φ = 41690880.

The previous prime is 90804257. The next prime is 90804283. The reversal of 90804272 is 27240809.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42854 + ... + 44922.

It is an arithmetic number, because the mean of its divisors is an integer number (4761414).

Almost surely, 2^90804272 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 90804272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95228280).

90804272 is an abundant number, since it is smaller than the sum of its proper divisors (99652288).

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

90804272 is a wasteful number, since it uses less digits than its factorization.

90804272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2301 (or 2295 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 90804272 is about 9529.1275571271. The cubic root of 90804272 is about 449.4714320645.

The spelling of 90804272 in words is "ninety million, eight hundred four thousand, two hundred seventy-two".