90304512 has 52 divisors (see below), whose sum is σ = 240815400. Its totient is φ = 30097408.

The previous prime is 90304499. The next prime is 90304523. The reversal of 90304512 is 21540309.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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, 8614 + ... + 15962.

Almost surely, 2^90304512 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 90304512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120407700).

90304512 is an abundant number, since it is smaller than the sum of its proper divisors (150510888).

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

90304512 is an equidigital number, since it uses as much as digits as its factorization.

90304512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7376 (or 7354 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 90304512 is about 9502.8686195275. The cubic root of 90304512 is about 448.6453284837.

The spelling of 90304512 in words is "ninety million, three hundred four thousand, five hundred twelve".