12449864 has 32 divisors (see below), whose sum is σ = 28084800. Its totient is φ = 5054400.

The previous prime is 12449861. The next prime is 12449869. The reversal of 12449864 is 46894421.

It is a super-2 number, since 2×12449864² = 309998227236992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (12449861) 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 7 ways as a sum of consecutive naturals, for example, 4787 + ... + 6914.

It is an arithmetic number, because the mean of its divisors is an integer number (877650).

Almost surely, 2^12449864 is an apocalyptic number.

12449864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12449864 is an abundant number, since it is smaller than the sum of its proper divisors (15634936).

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

12449864 is a wasteful number, since it uses less digits than its factorization.

12449864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11733 (or 11729 counting only the distinct ones).

The product of its digits is 55296, while the sum is 38.

The square root of 12449864 is about 3528.4364809360. The cubic root of 12449864 is about 231.7687449903.

The spelling of 12449864 in words is "twelve million, four hundred forty-nine thousand, eight hundred sixty-four".