22512974 has 8 divisors (see below), whose sum is σ = 36839448. Its totient is φ = 10233160.

The previous prime is 22512949. The next prime is 22512989. The reversal of 22512974 is 47921522.

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

It is a self number, because there is not a number n which added to its sum of digits gives 22512974.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 511637 + ... + 511680.

It is an arithmetic number, because the mean of its divisors is an integer number (4604931).

Almost surely, 2^22512974 is an apocalyptic number.

22512974 is a deficient number, since it is larger than the sum of its proper divisors (14326474).

22512974 is a wasteful number, since it uses less digits than its factorization.

22512974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023330.

The product of its digits is 10080, while the sum is 32.

The square root of 22512974 is about 4744.7838728439. The cubic root of 22512974 is about 282.3650604667.

It can be divided in two parts, 2251 and 2974, that added together give a palindrome (5225).

The spelling of 22512974 in words is "twenty-two million, five hundred twelve thousand, nine hundred seventy-four".