22936945 has 4 divisors (see below), whose sum is σ = 27524340. Its totient is φ = 18349552.

The previous prime is 22936943. The next prime is 22936973. The reversal of 22936945 is 54963922.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11404129 + 11532816 = 3377^2 + 3396^2 .

It is a cyclic number.

It is not a de Polignac number, because 22936945 - 2¹ = 22936943 is a prime.

It is a super-2 number, since 2×22936945² = 1052206891866050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22936898 and 22936907.

It is not an unprimeable number, because it can be changed into a prime (22936943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2293690 + ... + 2293699.

It is an arithmetic number, because the mean of its divisors is an integer number (6881085).

Almost surely, 2^22936945 is an apocalyptic number.

It is an amenable number.

22936945 is a deficient number, since it is larger than the sum of its proper divisors (4587395).

22936945 is an equidigital number, since it uses as much as digits as its factorization.

22936945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4587394.

The product of its digits is 116640, while the sum is 40.

The square root of 22936945 is about 4789.2530732882. The cubic root of 22936945 is about 284.1265760252.

The spelling of 22936945 in words is "twenty-two million, nine hundred thirty-six thousand, nine hundred forty-five".