90522168 has 64 divisors (see below), whose sum is σ = 249350400. Its totient is φ = 27156480.

The previous prime is 90522163. The next prime is 90522169. The reversal of 90522168 is 86122509.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90522163) 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, 25528 + ... + 28856.

It is an arithmetic number, because the mean of its divisors is an integer number (3896100).

Almost surely, 2^90522168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90522168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124675200).

90522168 is an abundant number, since it is smaller than the sum of its proper divisors (158828232).

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

90522168 is a wasteful number, since it uses less digits than its factorization.

90522168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3452 (or 3448 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 90522168 is about 9514.3138480923. The cubic root of 90522168 is about 449.0054876703.

The spelling of 90522168 in words is "ninety million, five hundred twenty-two thousand, one hundred sixty-eight".