18114280 has 16 divisors (see below), whose sum is σ = 40757220. Its totient is φ = 7245696.

The previous prime is 18114227. The next prime is 18114281. The reversal of 18114280 is 8241181.

It can be written as a sum of positive squares in 2 ways, for example, as 17994564 + 119716 = 4242^2 + 346^2 .

It is not an unprimeable number, because it can be changed into a prime (18114281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226389 + ... + 226468.

Almost surely, 2^18114280 is an apocalyptic number.

18114280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18114280 is an abundant number, since it is smaller than the sum of its proper divisors (22642940).

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

18114280 is a wasteful number, since it uses less digits than its factorization.

18114280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452868 (or 452864 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 25.

The square root of 18114280 is about 4256.0874051175. The cubic root of 18114280 is about 262.6275963200.

The spelling of 18114280 in words is "eighteen million, one hundred fourteen thousand, two hundred eighty".