22743642 has 16 divisors (see below), whose sum is σ = 47465280. Its totient is φ = 7251552.

The previous prime is 22743607. The next prime is 22743649. The reversal of 22743642 is 24634722.

It is not an unprimeable number, because it can be changed into a prime (22743649) 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, 82267 + ... + 82542.

It is an arithmetic number, because the mean of its divisors is an integer number (2966580).

Almost surely, 2^22743642 is an apocalyptic number.

22743642 is an abundant number, since it is smaller than the sum of its proper divisors (24721638).

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

22743642 is a wasteful number, since it uses less digits than its factorization.

22743642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164837.

The product of its digits is 16128, while the sum is 30.

The square root of 22743642 is about 4769.0294610120. The cubic root of 22743642 is about 283.3261565272.

The spelling of 22743642 in words is "twenty-two million, seven hundred forty-three thousand, six hundred forty-two".