22572373 has 4 divisors (see below), whose sum is σ = 22602348. Its totient is φ = 22542400.

The previous prime is 22572317. The next prime is 22572401. The reversal of 22572373 is 37327522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37327522 = 2 ⋅18663761.

It can be written as a sum of positive squares in 2 ways, for example, as 3849444 + 18722929 = 1962^2 + 4327^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22572373 is a prime.

It is a super-2 number, since 2×22572373² = 1019024045702258, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22572313) 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 3 ways as a sum of consecutive naturals, for example, 13828 + ... + 15373.

It is an arithmetic number, because the mean of its divisors is an integer number (5650587).

Almost surely, 2^22572373 is an apocalyptic number.

It is an amenable number.

22572373 is a deficient number, since it is larger than the sum of its proper divisors (29975).

22572373 is an equidigital number, since it uses as much as digits as its factorization.

22572373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29974.

The product of its digits is 17640, while the sum is 31.

The square root of 22572373 is about 4751.0391494914. The cubic root of 22572373 is about 282.6131762572.

Adding to 22572373 its reverse (37327522), we get a palindrome (59899895).

It can be divided in two parts, 22572 and 373, that multiplied together give a triangular number (8419356 = T₄₁₀₃).

The spelling of 22572373 in words is "twenty-two million, five hundred seventy-two thousand, three hundred seventy-three".