90279252 has 48 divisors (see below), whose sum is σ = 267496320. Its totient is φ = 25793856.

The previous prime is 90279251. The next prime is 90279271. The reversal of 90279252 is 25297209.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90279251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58953 + ... + 60464.

It is an arithmetic number, because the mean of its divisors is an integer number (5572840).

Almost surely, 2^90279252 is an apocalyptic number.

It is an amenable number.

90279252 is an abundant number, since it is smaller than the sum of its proper divisors (177217068).

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

90279252 is a wasteful number, since it uses less digits than its factorization.

90279252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119437 (or 119429 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 90279252 is about 9501.5394542148. The cubic root of 90279252 is about 448.6034928560.

The spelling of 90279252 in words is "ninety million, two hundred seventy-nine thousand, two hundred fifty-two".