12264399 has 16 divisors (see below), whose sum is σ = 20765440. Its totient is φ = 7008120.

The previous prime is 12264397. The next prime is 12264403. The reversal of 12264399 is 99346221.

12264399 is a `hidden beast` number, since 1 + 2 + 2 + 643 + 9 + 9 = 666.

It is not a de Polignac number, because 12264399 - 2¹ = 12264397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12264397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32257 + ... + 32634.

It is an arithmetic number, because the mean of its divisors is an integer number (1297840).

Almost surely, 2^12264399 is an apocalyptic number.

12264399 is a deficient number, since it is larger than the sum of its proper divisors (8501041).

12264399 is an equidigital number, since it uses as much as digits as its factorization.

12264399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64907 (or 64901 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 12264399 is about 3502.0563958908. The cubic root of 12264399 is about 230.6120998799.

It can be divided in two parts, 1226439 and 9, that multiplied together give a triangular number (11037951 = T₄₆₉₈).

The spelling of 12264399 in words is "twelve million, two hundred sixty-four thousand, three hundred ninety-nine".