12199744 has 28 divisors (see below), whose sum is σ = 25635204. Its totient is φ = 5740544.

The previous prime is 12199739. The next prime is 12199757. The reversal of 12199744 is 44799121.

It can be written as a sum of positive squares in 2 ways, for example, as 4359744 + 7840000 = 2088^2 + 2800^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4519 + ... + 6694.

It is an arithmetic number, because the mean of its divisors is an integer number (915543).

Almost surely, 2^12199744 is an apocalyptic number.

It is an amenable number.

12199744 is an abundant number, since it is smaller than the sum of its proper divisors (13435460).

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

12199744 is a wasteful number, since it uses less digits than its factorization.

12199744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11242 (or 11232 counting only the distinct ones).

The product of its digits is 18144, while the sum is 37.

The square root of 12199744 is about 3492.8131928290. The cubic root of 12199744 is about 230.2061415888.

The spelling of 12199744 in words is "twelve million, one hundred ninety-nine thousand, seven hundred forty-four".