22561342 has 8 divisors (see below), whose sum is σ = 34756776. Its totient is φ = 10975752.

The previous prime is 22561337. The next prime is 22561349. The reversal of 22561342 is 24316522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22561349) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 152368 + ... + 152515.

It is an arithmetic number, because the mean of its divisors is an integer number (4344597).

Almost surely, 2^22561342 is an apocalyptic number.

22561342 is a deficient number, since it is larger than the sum of its proper divisors (12195434).

22561342 is a wasteful number, since it uses less digits than its factorization.

22561342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304922.

The product of its digits is 2880, while the sum is 25.

The square root of 22561342 is about 4749.8781036991. The cubic root of 22561342 is about 282.5671315647.

Adding to 22561342 its reverse (24316522), we get a palindrome (46877864).

The spelling of 22561342 in words is "twenty-two million, five hundred sixty-one thousand, three hundred forty-two".