18714472 has 24 divisors (see below), whose sum is σ = 40819410. Its totient is φ = 8020320.

The previous prime is 18714469. The next prime is 18714473. The reversal of 18714472 is 27441781.

It can be written as a sum of positive squares in only one way, i.e., 18714276 + 196 = 4326^2 + 14^2 .

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (18714473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23479 + ... + 24262.

Almost surely, 2^18714472 is an apocalyptic number.

It is an amenable number.

18714472 is an abundant number, since it is smaller than the sum of its proper divisors (22104938).

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

18714472 is a wasteful number, since it uses less digits than its factorization.

18714472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47761 (or 47750 counting only the distinct ones).

The product of its digits is 12544, while the sum is 34.

The square root of 18714472 is about 4326.0226536624. The cubic root of 18714472 is about 265.4967400529.

The spelling of 18714472 in words is "eighteen million, seven hundred fourteen thousand, four hundred seventy-two".