90270732 has 24 divisors (see below), whose sum is σ = 211728496. Its totient is φ = 29933568.

The previous prime is 90270727. The next prime is 90270737. The reversal of 90270732 is 23707209.

It is an interprime number because it is at equal distance from previous prime (90270727) and next prime (90270737).

It is a self number, because there is not a number n which added to its sum of digits gives 90270732.

It is not an unprimeable number, because it can be changed into a prime (90270737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17173 + ... + 21804.

Almost surely, 2^90270732 is an apocalyptic number.

It is an amenable number.

90270732 is an abundant number, since it is smaller than the sum of its proper divisors (121457764).

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

90270732 is a wasteful number, since it uses less digits than its factorization.

90270732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39177 (or 39175 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 30.

The square root of 90270732 is about 9501.0910952374. The cubic root of 90270732 is about 448.5893802668.

The spelling of 90270732 in words is "ninety million, two hundred seventy thousand, seven hundred thirty-two".