12299664 has 80 divisors (see below), whose sum is σ = 35747712. Its totient is φ = 3615744.

The previous prime is 12299663. The next prime is 12299681. The reversal of 12299664 is 46699221.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (12299663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13924 + ... + 14780.

Almost surely, 2^12299664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12299664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17873856).

12299664 is an abundant number, since it is smaller than the sum of its proper divisors (23448048).

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

12299664 is a wasteful number, since it uses less digits than its factorization.

12299664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904 (or 898 counting only the distinct ones).

The product of its digits is 46656, while the sum is 39.

The square root of 12299664 is about 3507.0876806832. The cubic root of 12299664 is about 230.8329220438.

The spelling of 12299664 in words is "twelve million, two hundred ninety-nine thousand, six hundred sixty-four".