22751274 has 32 divisors (see below), whose sum is σ = 56004480. Its totient is φ = 6000192.

The previous prime is 22751251. The next prime is 22751291. The reversal of 22751274 is 47215722.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20289 + ... + 21380.

It is an arithmetic number, because the mean of its divisors is an integer number (1750140).

Almost surely, 2^22751274 is an apocalyptic number.

22751274 is an abundant number, since it is smaller than the sum of its proper divisors (33253206).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22751274 is a wasteful number, since it uses less digits than its factorization.

22751274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41694.

The product of its digits is 7840, while the sum is 30.

The square root of 22751274 is about 4769.8295567033. The cubic root of 22751274 is about 283.3578445538.

Adding to 22751274 its reverse (47215722), we get a palindrome (69966996).

The spelling of 22751274 in words is "twenty-two million, seven hundred fifty-one thousand, two hundred seventy-four".