90240812490 has 16 divisors (see below), whose sum is σ = 216577950048. Its totient is φ = 24064216656.

The previous prime is 90240812483. The next prime is 90240812503. The reversal of 90240812490 is 9421804209.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1504013512 + ... + 1504013571.

It is an arithmetic number, because the mean of its divisors is an integer number (13536121878).

Almost surely, 2^90240812490 is an apocalyptic number.

90240812490 is an abundant number, since it is smaller than the sum of its proper divisors (126337137558).

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

90240812490 is a wasteful number, since it uses less digits than its factorization.

90240812490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3008027093.

The product of its (nonzero) digits is 41472, while the sum is 39.

The spelling of 90240812490 in words is "ninety billion, two hundred forty million, eight hundred twelve thousand, four hundred ninety".