90660304 has 40 divisors (see below), whose sum is σ = 201951360. Its totient is φ = 38621568.

The previous prime is 90660299. The next prime is 90660329. The reversal of 90660304 is 40306609.

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

It is a congruent number.

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, 17037 + ... + 21715.

It is an arithmetic number, because the mean of its divisors is an integer number (5048784).

Almost surely, 2^90660304 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 90660304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100975680).

90660304 is an abundant number, since it is smaller than the sum of its proper divisors (111291056).

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

90660304 is a wasteful number, since it uses less digits than its factorization.

90660304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4867 (or 4861 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 90660304 is about 9521.5704587006. The cubic root of 90660304 is about 449.2337643487.

The spelling of 90660304 in words is "ninety million, six hundred sixty thousand, three hundred four".