90224994 has 16 divisors (see below), whose sum is σ = 181104768. Its totient is φ = 29965872.

The previous prime is 90224993. The next prime is 90225041. The reversal of 90224994 is 49942209.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (90224993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25482 + ... + 28805.

It is an arithmetic number, because the mean of its divisors is an integer number (11319048).

Almost surely, 2^90224994 is an apocalyptic number.

90224994 is an abundant number, since it is smaller than the sum of its proper divisors (90879774).

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

90224994 is a wasteful number, since it uses less digits than its factorization.

90224994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54569.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 90224994 is about 9498.6838035593. The cubic root of 90224994 is about 448.5136043320.

The spelling of 90224994 in words is "ninety million, two hundred twenty-four thousand, nine hundred ninety-four".