18884712 has 96 divisors (see below), whose sum is σ = 59371200. Its totient is φ = 4899840.

The previous prime is 18884699. The next prime is 18884731. The reversal of 18884712 is 21748881.

It is a happy number.

It is a super-3 number, since 3×18884712³ (a number of 23 digits) contains 333 as substring.

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

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 23 ways as a sum of consecutive naturals, for example, 19864 + ... + 20792.

It is an arithmetic number, because the mean of its divisors is an integer number (618450).

Almost surely, 2^18884712 is an apocalyptic number.

18884712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18884712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29685600).

18884712 is an abundant number, since it is smaller than the sum of its proper divisors (40486488).

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

18884712 is a wasteful number, since it uses less digits than its factorization.

18884712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967 (or 952 counting only the distinct ones).

The product of its digits is 28672, while the sum is 39.

The square root of 18884712 is about 4345.6543811030. The cubic root of 18884712 is about 266.2993595807.

The spelling of 18884712 in words is "eighteen million, eight hundred eighty-four thousand, seven hundred twelve".