18534712 has 64 divisors (see below), whose sum is σ = 41860800. Its totient is φ = 7526400.

The previous prime is 18534707. The next prime is 18534713. The reversal of 18534712 is 21743581.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18534713) 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 15 ways as a sum of consecutive naturals, for example, 163968 + ... + 164080.

It is an arithmetic number, because the mean of its divisors is an integer number (654075).

Almost surely, 2^18534712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18534712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20930400).

18534712 is an abundant number, since it is smaller than the sum of its proper divisors (23326088).

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

18534712 is a wasteful number, since it uses less digits than its factorization.

18534712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256 (or 252 counting only the distinct ones).

The product of its digits is 6720, while the sum is 31.

The square root of 18534712 is about 4305.1959305007. The cubic root of 18534712 is about 264.6439361761.

The spelling of 18534712 in words is "eighteen million, five hundred thirty-four thousand, seven hundred twelve".