90300660 has 24 divisors (see below), whose sum is σ = 252842016. Its totient is φ = 24080160.

The previous prime is 90300659. The next prime is 90300697. The reversal of 90300660 is 6600309.

It is a self number, because there is not a number n which added to its sum of digits gives 90300660.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 752446 + ... + 752565.

It is an arithmetic number, because the mean of its divisors is an integer number (10535084).

Almost surely, 2^90300660 is an apocalyptic number.

It is an amenable number.

90300660 is an abundant number, since it is smaller than the sum of its proper divisors (162541356).

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

90300660 is a wasteful number, since it uses less digits than its factorization.

90300660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1505023 (or 1505021 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 90300660 is about 9502.6659417239. The cubic root of 90300660 is about 448.6389493031.

Adding to 90300660 its reverse (6600309), we get a palindrome (96900969).

The spelling of 90300660 in words is "ninety million, three hundred thousand, six hundred sixty".