22199672 has 32 divisors (see below), whose sum is σ = 45601920. Its totient is φ = 10047840.

The previous prime is 22199663. The next prime is 22199677. The reversal of 22199672 is 27699122.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22199677) 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, 30173 + ... + 30899.

It is an arithmetic number, because the mean of its divisors is an integer number (1425060).

Almost surely, 2^22199672 is an apocalyptic number.

22199672 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22199672 is an abundant number, since it is smaller than the sum of its proper divisors (23402248).

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

22199672 is a wasteful number, since it uses less digits than its factorization.

22199672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091 (or 1087 counting only the distinct ones).

The product of its digits is 27216, while the sum is 38.

The square root of 22199672 is about 4711.6527885658. The cubic root of 22199672 is about 281.0490916117.

The spelling of 22199672 in words is "twenty-two million, one hundred ninety-nine thousand, six hundred seventy-two".