22542342 has 16 divisors (see below), whose sum is σ = 45153072. Its totient is φ = 7502720.

The previous prime is 22542329. The next prime is 22542343. The reversal of 22542342 is 24324522.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22542343) 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 7 ways as a sum of consecutive naturals, for example, 2098 + ... + 7034.

It is an arithmetic number, because the mean of its divisors is an integer number (2822067).

Almost surely, 2^22542342 is an apocalyptic number.

22542342 is an abundant number, since it is smaller than the sum of its proper divisors (22610730).

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

22542342 is a wasteful number, since it uses less digits than its factorization.

22542342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5703.

The product of its digits is 3840, while the sum is 24.

The square root of 22542342 is about 4747.8776311106. The cubic root of 22542342 is about 282.4877881269.

Adding to 22542342 its reverse (24324522), we get a palindrome (46866864).

The spelling of 22542342 in words is "twenty-two million, five hundred forty-two thousand, three hundred forty-two".