18434712 has 32 divisors (see below), whose sum is σ = 48513600. Its totient is φ = 5821344.

The previous prime is 18434711. The next prime is 18434723. The reversal of 18434712 is 21743481.

It is a self number, because there is not a number n which added to its sum of digits gives 18434712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18434711) 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, 19758 + ... + 20669.

It is an arithmetic number, because the mean of its divisors is an integer number (1516050).

Almost surely, 2^18434712 is an apocalyptic number.

18434712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18434712 is an abundant number, since it is smaller than the sum of its proper divisors (30078888).

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

18434712 is a wasteful number, since it uses less digits than its factorization.

18434712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40455 (or 40451 counting only the distinct ones).

The product of its digits is 5376, while the sum is 30.

The square root of 18434712 is about 4293.5663497843. The cubic root of 18434712 is about 264.1671347547.

It can be divided in two parts, 1843 and 4712, that added together give a triangular number (6555 = T₁₁₄).

The spelling of 18434712 in words is "eighteen million, four hundred thirty-four thousand, seven hundred twelve".