18743412 has 48 divisors (see below), whose sum is σ = 45158400. Its totient is φ = 6047712.

The previous prime is 18743383. The next prime is 18743419. The reversal of 18743412 is 21434781.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 18743412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18743419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94089 + ... + 94287.

It is an arithmetic number, because the mean of its divisors is an integer number (940800).

Almost surely, 2^18743412 is an apocalyptic number.

18743412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18743412 is an abundant number, since it is smaller than the sum of its proper divisors (26414988).

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

18743412 is a wasteful number, since it uses less digits than its factorization.

18743412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420 (or 418 counting only the distinct ones).

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

The square root of 18743412 is about 4329.3662353744. The cubic root of 18743412 is about 265.6335240079.

The spelling of 18743412 in words is "eighteen million, seven hundred forty-three thousand, four hundred twelve".