22456542 has 16 divisors (see below), whose sum is σ = 45358992. Its totient is φ = 7411200.

The previous prime is 22456529. The next prime is 22456547. The reversal of 22456542 is 24565422.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22456547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17923 + ... + 19134.

It is an arithmetic number, because the mean of its divisors is an integer number (2834937).

Almost surely, 2^22456542 is an apocalyptic number.

22456542 is an abundant number, since it is smaller than the sum of its proper divisors (22902450).

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

22456542 is a wasteful number, since it uses less digits than its factorization.

22456542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37163.

The product of its digits is 19200, while the sum is 30.

The square root of 22456542 is about 4738.8334007433. The cubic root of 22456542 is about 282.1289335466.

The spelling of 22456542 in words is "twenty-two million, four hundred fifty-six thousand, five hundred forty-two".