18514272 has 48 divisors (see below), whose sum is σ = 55544832. Its totient is φ = 5289600.

The previous prime is 18514219. The next prime is 18514273. The reversal of 18514272 is 27241581.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18514273) 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, 13104 + ... + 14447.

It is an arithmetic number, because the mean of its divisors is an integer number (1157184).

Almost surely, 2^18514272 is an apocalyptic number.

18514272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18514272 is an abundant number, since it is smaller than the sum of its proper divisors (37030560).

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

18514272 is a wasteful number, since it uses less digits than its factorization.

18514272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27571 (or 27563 counting only the distinct ones).

The product of its digits is 4480, while the sum is 30.

The square root of 18514272 is about 4302.8213999654. The cubic root of 18514272 is about 264.5466176648.

The spelling of 18514272 in words is "eighteen million, five hundred fourteen thousand, two hundred seventy-two".