22742192 has 60 divisors (see below), whose sum is σ = 51356088. Its totient is φ = 9715200.

The previous prime is 22742191. The next prime is 22742197. The reversal of 22742192 is 29124722.

It is not an unprimeable number, because it can be changed into a prime (22742191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32567 + ... + 33257.

Almost surely, 2^22742192 is an apocalyptic number.

22742192 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22742192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25678044).

22742192 is an abundant number, since it is smaller than the sum of its proper divisors (28613896).

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

22742192 is a wasteful number, since it uses less digits than its factorization.

22742192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738 (or 721 counting only the distinct ones).

The product of its digits is 4032, while the sum is 29.

The square root of 22742192 is about 4768.8774360430. The cubic root of 22742192 is about 283.3201353329.

The spelling of 22742192 in words is "twenty-two million, seven hundred forty-two thousand, one hundred ninety-two".