90224385 has 16 divisors (see below), whose sum is σ = 144559296. Its totient is φ = 48052928.

The previous prime is 90224383. The next prime is 90224401. The reversal of 90224385 is 58342209.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 90224385 - 2¹ = 90224383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90224383) 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 15 ways as a sum of consecutive naturals, for example, 8182 + ... + 15728.

It is an arithmetic number, because the mean of its divisors is an integer number (9034956).

Almost surely, 2^90224385 is an apocalyptic number.

It is an amenable number.

90224385 is a deficient number, since it is larger than the sum of its proper divisors (54334911).

90224385 is a wasteful number, since it uses less digits than its factorization.

90224385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8352.

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

The square root of 90224385 is about 9498.6517464322. The cubic root of 90224385 is about 448.5125952051.

It can be divided in two parts, 90224 and 385, that added together give a palindrome (90609).

The spelling of 90224385 in words is "ninety million, two hundred twenty-four thousand, three hundred eighty-five".