90385224 has 32 divisors (see below), whose sum is σ = 226353120. Its totient is φ = 30076416.

The previous prime is 90385189. The next prime is 90385231. The reversal of 90385224 is 42258309.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12504 + ... + 18360.

It is an arithmetic number, because the mean of its divisors is an integer number (7073535).

Almost surely, 2^90385224 is an apocalyptic number.

It is an amenable number.

90385224 is an abundant number, since it is smaller than the sum of its proper divisors (135967896).

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

90385224 is a wasteful number, since it uses less digits than its factorization.

90385224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6509 (or 6505 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 90385224 is about 9507.1143887091. The cubic root of 90385224 is about 448.7789514819.

It can be divided in two parts, 90385 and 224, that added together give a palindrome (90609).

The spelling of 90385224 in words is "ninety million, three hundred eighty-five thousand, two hundred twenty-four".