22742534 has 8 divisors (see below), whose sum is σ = 34165800. Its totient is φ = 11353936.

The previous prime is 22742527. The next prime is 22742539. The reversal of 22742534 is 43524722.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 22742497 and 22742506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22742539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6959 + ... + 9690.

It is an arithmetic number, because the mean of its divisors is an integer number (4270725).

Almost surely, 2^22742534 is an apocalyptic number.

22742534 is a deficient number, since it is larger than the sum of its proper divisors (11423266).

22742534 is a wasteful number, since it uses less digits than its factorization.

22742534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17334.

The product of its digits is 13440, while the sum is 29.

The square root of 22742534 is about 4768.9132934034. The cubic root of 22742534 is about 283.3215555273.

The spelling of 22742534 in words is "twenty-two million, seven hundred forty-two thousand, five hundred thirty-four".