22142692 has 24 divisors (see below), whose sum is σ = 45525312. Its totient is φ = 9290400.

The previous prime is 22142677. The next prime is 22142693. The reversal of 22142692 is 29624122.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 22142692.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22142693) 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, 18784 + ... + 19927.

It is an arithmetic number, because the mean of its divisors is an integer number (1896888).

Almost surely, 2^22142692 is an apocalyptic number.

22142692 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22142692 is an abundant number, since it is smaller than the sum of its proper divisors (23382620).

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

22142692 is a wasteful number, since it uses less digits than its factorization.

22142692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38739 (or 38737 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 22142692 is about 4705.6021931311. The cubic root of 22142692 is about 280.8084289264.

The spelling of 22142692 in words is "twenty-two million, one hundred forty-two thousand, six hundred ninety-two".