22742158 has 16 divisors (see below), whose sum is σ = 37286784. Its totient is φ = 10356480.

The previous prime is 22742149. The next prime is 22742191. The reversal of 22742158 is 85124722.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9735 + ... + 11842.

It is an arithmetic number, because the mean of its divisors is an integer number (2330424).

Almost surely, 2^22742158 is an apocalyptic number.

22742158 is a deficient number, since it is larger than the sum of its proper divisors (14544626).

22742158 is a wasteful number, since it uses less digits than its factorization.

22742158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21627.

The product of its digits is 8960, while the sum is 31.

The square root of 22742158 is about 4768.8738712614. The cubic root of 22742158 is about 283.3199941432.

The spelling of 22742158 in words is "twenty-two million, seven hundred forty-two thousand, one hundred fifty-eight".