22542947 has 8 divisors (see below), whose sum is σ = 26652000. Its totient is φ = 18656064.

The previous prime is 22542917. The next prime is 22542973. The reversal of 22542947 is 74924522.

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

It is not a de Polignac number, because 22542947 - 2¹² = 22538851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22542917) 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, 55322 + ... + 55727.

It is an arithmetic number, because the mean of its divisors is an integer number (3331500).

Almost surely, 2^22542947 is an apocalyptic number.

22542947 is a deficient number, since it is larger than the sum of its proper divisors (4109053).

22542947 is a wasteful number, since it uses less digits than its factorization.

22542947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111085.

The product of its digits is 40320, while the sum is 35.

The square root of 22542947 is about 4747.9413433614. The cubic root of 22542947 is about 282.4903152761.

The spelling of 22542947 in words is "twenty-two million, five hundred forty-two thousand, nine hundred forty-seven".