12193884 has 36 divisors (see below), whose sum is σ = 31351320. Its totient is φ = 3995040.

The previous prime is 12193871. The next prime is 12193889. The reversal of 12193884 is 48839121.

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12193889) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 747 + ... + 4994.

It is an arithmetic number, because the mean of its divisors is an integer number (870870).

Almost surely, 2^12193884 is an apocalyptic number.

It is an amenable number.

12193884 is an abundant number, since it is smaller than the sum of its proper divisors (19157436).

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

12193884 is a wasteful number, since it uses less digits than its factorization.

12193884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5810 (or 5805 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 12193884 is about 3491.9742267090. The cubic root of 12193884 is about 230.1692767704.

The spelling of 12193884 in words is "twelve million, one hundred ninety-three thousand, eight hundred eighty-four".