22852818 has 12 divisors (see below), whose sum is σ = 49514478. Its totient is φ = 7617600.

The previous prime is 22852813. The next prime is 22852849. The reversal of 22852818 is 81825822.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 22781529 + 71289 = 4773^2 + 267^2 .

It is a super-2 number, since 2×22852818² = 1044502581082248, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22852813) 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 5 ways as a sum of consecutive naturals, for example, 634783 + ... + 634818.

Almost surely, 2^22852818 is an apocalyptic number.

22852818 is an abundant number, since it is smaller than the sum of its proper divisors (26661660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22852818 is a wasteful number, since it uses less digits than its factorization.

22852818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1269609 (or 1269606 counting only the distinct ones).

The product of its digits is 20480, while the sum is 36.

The square root of 22852818 is about 4780.4621115537. The cubic root of 22852818 is about 283.7787819718.

The spelling of 22852818 in words is "twenty-two million, eight hundred fifty-two thousand, eight hundred eighteen".