18284412 has 12 divisors (see below), whose sum is σ = 42663656. Its totient is φ = 6094800.

The previous prime is 18284411. The next prime is 18284419. The reversal of 18284412 is 21448281.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 18284412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18284411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 761839 + ... + 761862.

Almost surely, 2^18284412 is an apocalyptic number.

18284412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18284412 is an abundant number, since it is smaller than the sum of its proper divisors (24379244).

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

18284412 is a wasteful number, since it uses less digits than its factorization.

18284412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1523708 (or 1523706 counting only the distinct ones).

The product of its digits is 4096, while the sum is 30.

The square root of 18284412 is about 4276.0275957950. The cubic root of 18284412 is about 263.4472479785.

The spelling of 18284412 in words is "eighteen million, two hundred eighty-four thousand, four hundred twelve".