90342372 has 12 divisors (see below), whose sum is σ = 210798896. Its totient is φ = 30114120.

The previous prime is 90342323. The next prime is 90342377. The reversal of 90342372 is 27324309.

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

It is not an unprimeable number, because it can be changed into a prime (90342377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3764254 + ... + 3764277.

Almost surely, 2^90342372 is an apocalyptic number.

It is an amenable number.

90342372 is an abundant number, since it is smaller than the sum of its proper divisors (120456524).

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

90342372 is a wasteful number, since it uses less digits than its factorization.

90342372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7528538 (or 7528536 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 90342372 is about 9504.8604408481. The cubic root of 90342372 is about 448.7080176324.

The spelling of 90342372 in words is "ninety million, three hundred forty-two thousand, three hundred seventy-two".