22137668 has 24 divisors (see below), whose sum is σ = 44396352. Its totient is φ = 9461664.

The previous prime is 22137667. The next prime is 22137673. The reversal of 22137668 is 86673122.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22137667) 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 7 ways as a sum of consecutive naturals, for example, 12230 + ... + 13922.

It is an arithmetic number, because the mean of its divisors is an integer number (1849848).

Almost surely, 2^22137668 is an apocalyptic number.

22137668 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

22137668 is an abundant number, since it is smaller than the sum of its proper divisors (22258684).

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

22137668 is a wasteful number, since it uses less digits than its factorization.

22137668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2171 (or 2169 counting only the distinct ones).

The product of its digits is 24192, while the sum is 35.

The square root of 22137668 is about 4705.0683310660. The cubic root of 22137668 is about 280.7871895899.

The spelling of 22137668 in words is "twenty-two million, one hundred thirty-seven thousand, six hundred sixty-eight".