12899544 has 64 divisors (see below), whose sum is σ = 37632000. Its totient is φ = 3683232.

The previous prime is 12899539. The next prime is 12899561. The reversal of 12899544 is 44599821.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 12899496 and 12899505.

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 in 15 ways as a sum of consecutive naturals, for example, 7449 + ... + 9015.

It is an arithmetic number, because the mean of its divisors is an integer number (588000).

Almost surely, 2^12899544 is an apocalyptic number.

12899544 is a gapful number since it is divisible by the number (14) 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 12899544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18816000).

12899544 is an abundant number, since it is smaller than the sum of its proper divisors (24732456).

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

12899544 is a wasteful number, since it uses less digits than its factorization.

12899544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1597 (or 1579 counting only the distinct ones).

The product of its digits is 103680, while the sum is 42.

The square root of 12899544 is about 3591.5935182033. The cubic root of 12899544 is about 234.5262464125.

The spelling of 12899544 in words is "twelve million, eight hundred ninety-nine thousand, five hundred forty-four".