18256268 has 12 divisors (see below), whose sum is σ = 32353440. Its totient is φ = 9012432.

The previous prime is 18256267. The next prime is 18256309. The reversal of 18256268 is 86265281.

It is not an unprimeable number, because it can be changed into a prime (18256267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28571 + ... + 29202.

It is an arithmetic number, because the mean of its divisors is an integer number (2696120).

Almost surely, 2^18256268 is an apocalyptic number.

It is an amenable number.

18256268 is a deficient number, since it is larger than the sum of its proper divisors (14097172).

18256268 is a wasteful number, since it uses less digits than its factorization.

18256268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57856 (or 57854 counting only the distinct ones).

The product of its digits is 46080, while the sum is 38.

The square root of 18256268 is about 4272.7354235899. The cubic root of 18256268 is about 263.3120095251.

The spelling of 18256268 in words is "eighteen million, two hundred fifty-six thousand, two hundred sixty-eight".