22590138 has 8 divisors (see below), whose sum is σ = 45180288. Its totient is φ = 7530044.

The previous prime is 22590131. The next prime is 22590151. The reversal of 22590138 is 83109522.

It is a happy number.

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

22590138 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22590131) 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 in 3 ways as a sum of consecutive naturals, for example, 1882506 + ... + 1882517.

It is an arithmetic number, because the mean of its divisors is an integer number (5647536).

Almost surely, 2^22590138 is an apocalyptic number.

22590138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22590138 is a wasteful number, since it uses less digits than its factorization.

22590138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3765028.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 22590138 is about 4752.9083727756. The cubic root of 22590138 is about 282.6872979359.

The spelling of 22590138 in words is "twenty-two million, five hundred ninety thousand, one hundred thirty-eight".