22172283 has 24 divisors (see below), whose sum is σ = 36742368. Its totient is φ = 12621312.

The previous prime is 22172279. The next prime is 22172291. The reversal of 22172283 is 38227122.

It is a happy number.

It is not a de Polignac number, because 22172283 - 2² = 22172279 is a prime.

It is a super-2 number, since 2×22172283² = 983220266864178, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22172273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21741 + ... + 22737.

It is an arithmetic number, because the mean of its divisors is an integer number (1530932).

Almost surely, 2^22172283 is an apocalyptic number.

22172283 is a deficient number, since it is larger than the sum of its proper divisors (14570085).

22172283 is a wasteful number, since it uses less digits than its factorization.

22172283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1363 (or 1360 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 22172283 is about 4708.7453743009. The cubic root of 22172283 is about 280.9334619541.

The spelling of 22172283 in words is "twenty-two million, one hundred seventy-two thousand, two hundred eighty-three".