9090022 has 4 divisors (see below), whose sum is σ = 13635036. Its totient is φ = 4545010.

The previous prime is 9090017. The next prime is 9090023. The reversal of 9090022 is 2200909.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 9089975 and 9090002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9090023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2272504 + ... + 2272507.

It is an arithmetic number, because the mean of its divisors is an integer number (3408759).

Almost surely, 2^9090022 is an apocalyptic number.

9090022 is a deficient number, since it is larger than the sum of its proper divisors (4545014).

9090022 is a wasteful number, since it uses less digits than its factorization.

9090022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4545013.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 9090022 is about 3014.9663348038. The cubic root of 9090022 is about 208.6996134979.

The spelling of 9090022 in words is "nine million, ninety thousand, twenty-two".