90268904 has 24 divisors (see below), whose sum is σ = 186041730. Its totient is φ = 41030880.

The previous prime is 90268847. The next prime is 90268907. The reversal of 90268904 is 40986209.

It can be written as a sum of positive squares in only one way, i.e., 56280004 + 33988900 = 7502^2 + 5830^2 .

It is a super-2 number, since 2×90268904² = 16296950058722432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90268907) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45659 + ... + 47594.

Almost surely, 2^90268904 is an apocalyptic number.

It is an amenable number.

90268904 is an abundant number, since it is smaller than the sum of its proper divisors (95772826).

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

90268904 is a wasteful number, since it uses less digits than its factorization.

90268904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93281 (or 93266 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 90268904 is about 9500.9948952728. The cubic root of 90268904 is about 448.5863522388.

The spelling of 90268904 in words is "ninety million, two hundred sixty-eight thousand, nine hundred four".