12812748 has 48 divisors (see below), whose sum is σ = 33605376. Its totient is φ = 3769920.

The previous prime is 12812729. The next prime is 12812749. The reversal of 12812748 is 84721821.

It is a happy number.

It is a super-2 number, since 2×12812748² = 328333022623008, which contains 22 as substring.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (12812749) 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, 1803 + ... + 5373.

It is an arithmetic number, because the mean of its divisors is an integer number (700112).

Almost surely, 2^12812748 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 12812748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16802688).

12812748 is an abundant number, since it is smaller than the sum of its proper divisors (20792628).

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

12812748 is a wasteful number, since it uses less digits than its factorization.

12812748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3614 (or 3612 counting only the distinct ones).

The product of its digits is 7168, while the sum is 33.

The square root of 12812748 is about 3579.4899077941. The cubic root of 12812748 is about 233.9990503285. Note that the first 3 decimals are identical.

The spelling of 12812748 in words is "twelve million, eight hundred twelve thousand, seven hundred forty-eight".