90304488 has 48 divisors (see below), whose sum is σ = 252470400. Its totient is φ = 29129760.

The previous prime is 90304483. The next prime is 90304499. The reversal of 90304488 is 88440309.

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

It is not an unprimeable number, because it can be changed into a prime (90304481) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17998 + ... + 22461.

It is an arithmetic number, because the mean of its divisors is an integer number (5259800).

Almost surely, 2^90304488 is an apocalyptic number.

It is an amenable number.

90304488 is an abundant number, since it is smaller than the sum of its proper divisors (162165912).

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

90304488 is a wasteful number, since it uses less digits than its factorization.

90304488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40502 (or 40495 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 90304488 is about 9502.8673567508. The cubic root of 90304488 is about 448.6452887386.

The spelling of 90304488 in words is "ninety million, three hundred four thousand, four hundred eighty-eight".