22172296 has 8 divisors (see below), whose sum is σ = 41573070. Its totient is φ = 11086144.

The previous prime is 22172291. The next prime is 22172321. The reversal of 22172296 is 69227122.

It can be written as a sum of positive squares in only one way, i.e., 18369796 + 3802500 = 4286^2 + 1950^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×22172296² = 983221419823232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22172291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1385761 + ... + 1385776.

Almost surely, 2^22172296 is an apocalyptic number.

It is an amenable number.

22172296 is a deficient number, since it is larger than the sum of its proper divisors (19400774).

22172296 is a wasteful number, since it uses less digits than its factorization.

22172296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2771543 (or 2771539 counting only the distinct ones).

The product of its digits is 6048, while the sum is 31.

The square root of 22172296 is about 4708.7467547109. The cubic root of 22172296 is about 280.9335168595.

The spelling of 22172296 in words is "twenty-two million, one hundred seventy-two thousand, two hundred ninety-six".