22312474 has 16 divisors (see below), whose sum is σ = 34149600. Its totient is φ = 10931184.

The previous prime is 22312469. The next prime is 22312489. The reversal of 22312474 is 47421322.

It is a happy number.

It is a super-3 number, since 3×22312474³ (a number of 23 digits) contains 333 as substring.

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, 35737 + ... + 36355.

It is an arithmetic number, because the mean of its divisors is an integer number (2134350).

Almost surely, 2^22312474 is an apocalyptic number.

22312474 is a deficient number, since it is larger than the sum of its proper divisors (11837126).

22312474 is a wasteful number, since it uses less digits than its factorization.

22312474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957.

The product of its digits is 2688, while the sum is 25.

The square root of 22312474 is about 4723.6081547901. The cubic root of 22312474 is about 281.5243141579.

Adding to 22312474 its reverse (47421322), we get a palindrome (69733796).

The spelling of 22312474 in words is "twenty-two million, three hundred twelve thousand, four hundred seventy-four".