12449892 has 72 divisors (see below), whose sum is σ = 35990976. Its totient is φ = 3279744.

The previous prime is 12449887. The next prime is 12449893. The reversal of 12449892 is 29894421.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12449892.

It is not an unprimeable number, because it can be changed into a prime (12449893) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13758 + ... + 14634.

Almost surely, 2^12449892 is an apocalyptic number.

12449892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12449892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17995488).

12449892 is an abundant number, since it is smaller than the sum of its proper divisors (23541084).

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

12449892 is a wasteful number, since it uses less digits than its factorization.

12449892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917 (or 902 counting only the distinct ones).

The product of its digits is 41472, while the sum is 39.

The square root of 12449892 is about 3528.4404486968. The cubic root of 12449892 is about 231.7689187410.

The spelling of 12449892 in words is "twelve million, four hundred forty-nine thousand, eight hundred ninety-two".