90943488 has 78 divisors (see below), whose sum is σ = 262800044. Its totient is φ = 30302208.

The previous prime is 90943487. The next prime is 90943513. The reversal of 90943488 is 88434909.

It is a happy number.

It is a super-2 number, since 2×90943488² = 16541436019212288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90943483) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35631 + ... + 38097.

Almost surely, 2^90943488 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 90943488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131400022).

90943488 is an abundant number, since it is smaller than the sum of its proper divisors (171856556).

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

90943488 is a wasteful number, since it uses less digits than its factorization.

90943488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2497 (or 2472 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 90943488 is about 9536.4295205281. The cubic root of 90943488 is about 449.7010162115.

The spelling of 90943488 in words is "ninety million, nine hundred forty-three thousand, four hundred eighty-eight".