18441272 has 16 divisors (see below), whose sum is σ = 34995240. Its totient is φ = 9109216.

The previous prime is 18441271. The next prime is 18441301. The reversal of 18441272 is 27214481.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18441271) 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, 13223 + ... + 14550.

Almost surely, 2^18441272 is an apocalyptic number.

It is an amenable number.

18441272 is a deficient number, since it is larger than the sum of its proper divisors (16553968).

18441272 is a wasteful number, since it uses less digits than its factorization.

18441272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27862 (or 27858 counting only the distinct ones).

The product of its digits is 3584, while the sum is 29.

The square root of 18441272 is about 4294.3302155284. The cubic root of 18441272 is about 264.1984657005.

The spelling of 18441272 in words is "eighteen million, four hundred forty-one thousand, two hundred seventy-two".