18285268 has 24 divisors (see below), whose sum is σ = 34013952. Its totient is φ = 8571264.

The previous prime is 18285263. The next prime is 18285271. The reversal of 18285268 is 86258281.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 18285268.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18285263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29821 + ... + 30427.

It is an arithmetic number, because the mean of its divisors is an integer number (1417248).

Almost surely, 2^18285268 is an apocalyptic number.

It is an amenable number.

18285268 is a deficient number, since it is larger than the sum of its proper divisors (15728684).

18285268 is a wasteful number, since it uses less digits than its factorization.

18285268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071 (or 1069 counting only the distinct ones).

The product of its digits is 61440, while the sum is 40.

The square root of 18285268 is about 4276.1276875229. The cubic root of 18285268 is about 263.4513590819.

The spelling of 18285268 in words is "eighteen million, two hundred eighty-five thousand, two hundred sixty-eight".