22272542 has 16 divisors (see below), whose sum is σ = 34076160. Its totient is φ = 10915608.

The previous prime is 22272521. The next prime is 22272577. The reversal of 22272542 is 24527222.

It is a super-2 number, since 2×22272542² = 992132254283528, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46259 + ... + 46737.

It is an arithmetic number, because the mean of its divisors is an integer number (2129760).

Almost surely, 2^22272542 is an apocalyptic number.

22272542 is a deficient number, since it is larger than the sum of its proper divisors (11803618).

22272542 is a wasteful number, since it uses less digits than its factorization.

22272542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895.

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

The square root of 22272542 is about 4719.3794083545. The cubic root of 22272542 is about 281.3562685170.

Adding to 22272542 its reverse (24527222), we get a palindrome (46799764).

The spelling of 22272542 in words is "twenty-two million, two hundred seventy-two thousand, five hundred forty-two".