90243468 has 36 divisors (see below), whose sum is σ = 260704080. Its totient is φ = 25783776.

The previous prime is 90243457. The next prime is 90243487. The reversal of 90243468 is 86434209.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

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 11 ways as a sum of consecutive naturals, for example, 178803 + ... + 179306.

It is an arithmetic number, because the mean of its divisors is an integer number (7241780).

Almost surely, 2^90243468 is an apocalyptic number.

It is an amenable number.

90243468 is an abundant number, since it is smaller than the sum of its proper divisors (170460612).

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

90243468 is a wasteful number, since it uses less digits than its factorization.

90243468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358126 (or 358121 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 90243468 is about 9499.6562043055. The cubic root of 90243468 is about 448.5442140131.

The spelling of 90243468 in words is "ninety million, two hundred forty-three thousand, four hundred sixty-eight".