12398744 has 8 divisors (see below), whose sum is σ = 23247660. Its totient is φ = 6199368.

The previous prime is 12398723. The next prime is 12398753. The reversal of 12398744 is 44789321.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 12398698 and 12398707.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 774914 + ... + 774929.

Almost surely, 2^12398744 is an apocalyptic number.

It is an amenable number.

12398744 is a deficient number, since it is larger than the sum of its proper divisors (10848916).

12398744 is a wasteful number, since it uses less digits than its factorization.

12398744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1549849 (or 1549845 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 12398744 is about 3521.1850277996. The cubic root of 12398744 is about 231.4510903397.

The spelling of 12398744 in words is "twelve million, three hundred ninety-eight thousand, seven hundred forty-four".