22724374 has 4 divisors (see below), whose sum is σ = 34086564. Its totient is φ = 11362186.

The previous prime is 22724363. The next prime is 22724417. The reversal of 22724374 is 47342722.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5681092 + ... + 5681095.

It is an arithmetic number, because the mean of its divisors is an integer number (8521641).

Almost surely, 2^22724374 is an apocalyptic number.

22724374 is a deficient number, since it is larger than the sum of its proper divisors (11362190).

22724374 is a wasteful number, since it uses less digits than its factorization.

22724374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11362189.

The product of its digits is 18816, while the sum is 31.

The square root of 22724374 is about 4767.0089154521. The cubic root of 22724374 is about 283.2461243328.

The spelling of 22724374 in words is "twenty-two million, seven hundred twenty-four thousand, three hundred seventy-four".