22153274 has 32 divisors (see below), whose sum is σ = 40400640. Its totient is φ = 8971200.

The previous prime is 22153273. The next prime is 22153283. The reversal of 22153274 is 47235122.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (22153273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6959 + ... + 9629.

It is an arithmetic number, because the mean of its divisors is an integer number (1262520).

Almost surely, 2^22153274 is an apocalyptic number.

22153274 is a deficient number, since it is larger than the sum of its proper divisors (18247366).

22153274 is a wasteful number, since it uses less digits than its factorization.

22153274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2726.

The product of its digits is 3360, while the sum is 26.

The square root of 22153274 is about 4706.7264632651. The cubic root of 22153274 is about 280.8531546168.

Adding to 22153274 its reverse (47235122), we get a palindrome (69388396).

The spelling of 22153274 in words is "twenty-two million, one hundred fifty-three thousand, two hundred seventy-four".