18285072 has 40 divisors (see below), whose sum is σ = 50871744. Its totient is φ = 5625984.

The previous prime is 18285061. The next prime is 18285083. The reversal of 18285072 is 27058281.

It is an interprime number because it is at equal distance from previous prime (18285061) and next prime (18285083).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14028 + ... + 15275.

Almost surely, 2^18285072 is an apocalyptic number.

18285072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18285072 is an abundant number, since it is smaller than the sum of its proper divisors (32586672).

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

18285072 is a wasteful number, since it uses less digits than its factorization.

18285072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29327 (or 29321 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 18285072 is about 4276.1047695303. The cubic root of 18285072 is about 263.4504177658.

The spelling of 18285072 in words is "eighteen million, two hundred eighty-five thousand, seventy-two".