12299724 has 18 divisors (see below), whose sum is σ = 31091060. Its totient is φ = 4099896.

The previous prime is 12299719. The next prime is 12299731. The reversal of 12299724 is 42799221.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 341659 = 12299724 / (1 + 2 + 2 + 9 + 9 + 7 + 2 + 4).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 170794 + ... + 170865.

Almost surely, 2^12299724 is an apocalyptic number.

It is an amenable number.

12299724 is an abundant number, since it is smaller than the sum of its proper divisors (18791336).

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

12299724 is a wasteful number, since it uses less digits than its factorization.

12299724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341669 (or 341664 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 12299724 is about 3507.0962347789. The cubic root of 12299724 is about 230.8332973915.

The spelling of 12299724 in words is "twelve million, two hundred ninety-nine thousand, seven hundred twenty-four".