22745871 has 12 divisors (see below), whose sum is σ = 32989320. Its totient is φ = 15102000.

The previous prime is 22745837. The next prime is 22745903. The reversal of 22745871 is 17854722.

22745871 is a `hidden beast` number, since 2 + 2 + 74 + 587 + 1 = 666.

It is not a de Polignac number, because 22745871 - 2¹⁰ = 22744847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22745171) 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 11 ways as a sum of consecutive naturals, for example, 2776 + ... + 7293.

It is an arithmetic number, because the mean of its divisors is an integer number (2749110).

Almost surely, 2^22745871 is an apocalyptic number.

22745871 is a deficient number, since it is larger than the sum of its proper divisors (10243449).

22745871 is a wasteful number, since it uses less digits than its factorization.

22745871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10326 (or 10323 counting only the distinct ones).

The product of its digits is 31360, while the sum is 36.

The square root of 22745871 is about 4769.2631506345. The cubic root of 22745871 is about 283.3354120570.

It can be divided in two parts, 227458 and 71, that added together give a square (227529 = 477²).

The spelling of 22745871 in words is "twenty-two million, seven hundred forty-five thousand, eight hundred seventy-one".