12239744 has 32 divisors (see below), whose sum is σ = 26603640. Its totient is φ = 5562880.

The previous prime is 12239741. The next prime is 12239753. The reversal of 12239744 is 44793221.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×12239744² = 299622666371072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 12239744.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12239741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2939 + ... + 5754.

Almost surely, 2^12239744 is an apocalyptic number.

It is an amenable number.

12239744 is an abundant number, since it is smaller than the sum of its proper divisors (14363896).

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

12239744 is an equidigital number, since it uses as much as digits as its factorization.

12239744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8718 (or 8706 counting only the distinct ones).

The product of its digits is 12096, while the sum is 32.

The square root of 12239744 is about 3498.5345503510. The cubic root of 12239744 is about 230.4574638047.

The spelling of 12239744 in words is "twelve million, two hundred thirty-nine thousand, seven hundred forty-four".