22288274 has 4 divisors (see below), whose sum is σ = 33432414. Its totient is φ = 11144136.

The previous prime is 22288267. The next prime is 22288291. The reversal of 22288274 is 47288222.

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

It can be written as a sum of positive squares in only one way, i.e., 21687649 + 600625 = 4657^2 + 775^2 .

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 as a sum of consecutive naturals, namely, 5572067 + ... + 5572070.

Almost surely, 2^22288274 is an apocalyptic number.

22288274 is a deficient number, since it is larger than the sum of its proper divisors (11144140).

22288274 is a wasteful number, since it uses less digits than its factorization.

22288274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11144139.

The product of its digits is 28672, while the sum is 35.

The square root of 22288274 is about 4721.0458587055. The cubic root of 22288274 is about 281.4224973750.

The spelling of 22288274 in words is "twenty-two million, two hundred eighty-eight thousand, two hundred seventy-four".