12381884 has 6 divisors (see below), whose sum is σ = 21668304. Its totient is φ = 6190940.

The previous prime is 12381883. The next prime is 12381911. The reversal of 12381884 is 48818321.

It is a super-2 number, since 2×12381884² = 306622102778912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12381883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1547732 + ... + 1547739.

It is an arithmetic number, because the mean of its divisors is an integer number (3611384).

Almost surely, 2^12381884 is an apocalyptic number.

It is an amenable number.

12381884 is a deficient number, since it is larger than the sum of its proper divisors (9286420).

12381884 is a wasteful number, since it uses less digits than its factorization.

12381884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3095475 (or 3095473 counting only the distinct ones).

The product of its digits is 12288, while the sum is 35.

The square root of 12381884 is about 3518.7901329861. The cubic root of 12381884 is about 231.3461325174.

The spelling of 12381884 in words is "twelve million, three hundred eighty-one thousand, eight hundred eighty-four".