90040022 has 8 divisors (see below), whose sum is σ = 138201096. Its totient is φ = 43972992.

The previous prime is 90040003. The next prime is 90040037. The reversal of 90040022 is 22004009.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 523403 + ... + 523574.

It is an arithmetic number, because the mean of its divisors is an integer number (17275137).

Almost surely, 2^90040022 is an apocalyptic number.

90040022 is a deficient number, since it is larger than the sum of its proper divisors (48161074).

90040022 is a wasteful number, since it uses less digits than its factorization.

90040022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047022.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 90040022 is about 9488.9420906653. The cubic root of 90040022 is about 448.2068925082.

The spelling of 90040022 in words is "ninety million, forty thousand, twenty-two".