22591142 has 8 divisors (see below), whose sum is σ = 38727696. Its totient is φ = 9681912.

The previous prime is 22591139. The next prime is 22591169. The reversal of 22591142 is 24119522.

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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 806813 + ... + 806840.

It is an arithmetic number, because the mean of its divisors is an integer number (4840962).

Almost surely, 2^22591142 is an apocalyptic number.

22591142 is a deficient number, since it is larger than the sum of its proper divisors (16136554).

22591142 is a wasteful number, since it uses less digits than its factorization.

22591142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1613662.

The product of its digits is 1440, while the sum is 26.

The square root of 22591142 is about 4753.0139911429. The cubic root of 22591142 is about 282.6914858082.

The spelling of 22591142 in words is "twenty-two million, five hundred ninety-one thousand, one hundred forty-two".