22742522 has 8 divisors (see below), whose sum is σ = 37215072. Its totient is φ = 10337500.

The previous prime is 22742519. The next prime is 22742527. The reversal of 22742522 is 22524722.

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 = 22742491 and 22742500.

It is not an unprimeable number, because it can be changed into a prime (22742527) 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, 516854 + ... + 516897.

It is an arithmetic number, because the mean of its divisors is an integer number (4651884).

Almost surely, 2^22742522 is an apocalyptic number.

22742522 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22742522 is a deficient number, since it is larger than the sum of its proper divisors (14472550).

22742522 is a wasteful number, since it uses less digits than its factorization.

22742522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033764.

The product of its digits is 4480, while the sum is 26.

The square root of 22742522 is about 4768.9120352550. The cubic root of 22742522 is about 283.3215056962.

The spelling of 22742522 in words is "twenty-two million, seven hundred forty-two thousand, five hundred twenty-two".