22642120 has 32 divisors (see below), whose sum is σ = 53161920. Its totient is φ = 8662720.

The previous prime is 22642063. The next prime is 22642141. The reversal of 22642120 is 2124622.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11386 + ... + 13225.

It is an arithmetic number, because the mean of its divisors is an integer number (1661310).

Almost surely, 2^22642120 is an apocalyptic number.

22642120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22642120 is an abundant number, since it is smaller than the sum of its proper divisors (30519800).

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

22642120 is a wasteful number, since it uses less digits than its factorization.

22642120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24645 (or 24641 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 22642120 is about 4758.3736717496. The cubic root of 22642120 is about 282.9039617187.

Adding to 22642120 its reverse (2124622), we get a palindrome (24766742).

The spelling of 22642120 in words is "twenty-two million, six hundred forty-two thousand, one hundred twenty".