90202668 has 12 divisors (see below), whose sum is σ = 210472920. Its totient is φ = 30067552.

The previous prime is 90202601. The next prime is 90202741. The reversal of 90202668 is 86620209.

It is a tau number, because it is divible by the number of its divisors (12).

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, 3758433 + ... + 3758456.

It is an arithmetic number, because the mean of its divisors is an integer number (17539410).

Almost surely, 2^90202668 is an apocalyptic number.

It is an amenable number.

90202668 is an abundant number, since it is smaller than the sum of its proper divisors (120270252).

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

90202668 is a wasteful number, since it uses less digits than its factorization.

90202668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7516896 (or 7516894 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 90202668 is about 9497.5085153950. The cubic root of 90202668 is about 448.4766066726.

The spelling of 90202668 in words is "ninety million, two hundred two thousand, six hundred sixty-eight".