22423142 has 8 divisors (see below), whose sum is σ = 38439696. Its totient is φ = 9609912.

The previous prime is 22423133. The next prime is 22423169. The reversal of 22423142 is 24132422.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 800813 + ... + 800840.

It is an arithmetic number, because the mean of its divisors is an integer number (4804962).

Almost surely, 2^22423142 is an apocalyptic number.

22423142 is a deficient number, since it is larger than the sum of its proper divisors (16016554).

22423142 is a wasteful number, since it uses less digits than its factorization.

22423142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1601662.

The product of its digits is 768, while the sum is 20.

The square root of 22423142 is about 4735.3080153249. The cubic root of 22423142 is about 281.9889924111.

Adding to 22423142 its reverse (24132422), we get a palindrome (46555564).

The spelling of 22423142 in words is "twenty-two million, four hundred twenty-three thousand, one hundred forty-two".