90240008 has 16 divisors (see below), whose sum is σ = 174658560. Its totient is φ = 43664400.

The previous prime is 90240001. The next prime is 90240011. The reversal of 90240008 is 80004209.

It is not an unprimeable number, because it can be changed into a prime (90240001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181688 + ... + 182183.

It is an arithmetic number, because the mean of its divisors is an integer number (10916160).

Almost surely, 2^90240008 is an apocalyptic number.

It is an amenable number.

90240008 is a deficient number, since it is larger than the sum of its proper divisors (84418552).

90240008 is a wasteful number, since it uses less digits than its factorization.

90240008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363908 (or 363904 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 90240008 is about 9499.4740907063. The cubic root of 90240008 is about 448.5384814363.

The spelling of 90240008 in words is "ninety million, two hundred forty thousand, eight".