22857243 has 16 divisors (see below), whose sum is σ = 31104000. Its totient is φ = 14927360.

The previous prime is 22857229. The next prime is 22857253. The reversal of 22857243 is 34275822.

It is a cyclic number.

It is not a de Polignac number, because 22857243 - 2⁴ = 22857227 is a prime.

It is a super-2 number, since 2×22857243² = 1044907115122098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22857203) 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 15 ways as a sum of consecutive naturals, for example, 50683 + ... + 51131.

It is an arithmetic number, because the mean of its divisors is an integer number (1944000).

Almost surely, 2^22857243 is an apocalyptic number.

22857243 is a deficient number, since it is larger than the sum of its proper divisors (8246757).

22857243 is a wasteful number, since it uses less digits than its factorization.

22857243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762.

The product of its digits is 26880, while the sum is 33.

The square root of 22857243 is about 4780.9249105168. The cubic root of 22857243 is about 283.7970968549.

It can be divided in two parts, 2 and 2857243, that added together give a triangular number (2857245 = T₂₃₉₀).

The spelling of 22857243 in words is "twenty-two million, eight hundred fifty-seven thousand, two hundred forty-three".