90241668 has 96 divisors (see below), whose sum is σ = 262254720. Its totient is φ = 26593920.

The previous prime is 90241643. The next prime is 90241691. The reversal of 90241668 is 86614209.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42930 + ... + 44982.

It is an arithmetic number, because the mean of its divisors is an integer number (2731820).

Almost surely, 2^90241668 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 90241668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131127360).

90241668 is an abundant number, since it is smaller than the sum of its proper divisors (172013052).

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

90241668 is a wasteful number, since it uses less digits than its factorization.

90241668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2114 (or 2106 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 90241668 is about 9499.5614635624. The cubic root of 90241668 is about 448.5412317660.

It can be divided in two parts, 90241 and 668, that added together give a palindrome (90909).

The spelling of 90241668 in words is "ninety million, two hundred forty-one thousand, six hundred sixty-eight".