12901984 has 24 divisors (see below), whose sum is σ = 26278560. Its totient is φ = 6228096.

The previous prime is 12901981. The next prime is 12902033. The reversal of 12901984 is 48910921.

It is a super-2 number, since 2×12901984² = 332922382272512, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12901981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6024 + ... + 7879.

It is an arithmetic number, because the mean of its divisors is an integer number (1094940).

Almost surely, 2^12901984 is an apocalyptic number.

It is an amenable number.

12901984 is an abundant number, since it is smaller than the sum of its proper divisors (13376576).

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

12901984 is a wasteful number, since it uses less digits than its factorization.

12901984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13942 (or 13934 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 12901984 is about 3591.9331842338. The cubic root of 12901984 is about 234.5410326707.

The spelling of 12901984 in words is "twelve million, nine hundred one thousand, nine hundred eighty-four".