12748500 has 72 divisors (see below), whose sum is σ = 40231464. Its totient is φ = 3398400.

The previous prime is 12748493. The next prime is 12748513. The reversal of 12748500 is 584721.

It can be written as a sum of positive squares in 4 ways, for example, as 887364 + 11861136 = 942^2 + 3444^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3084 + ... + 5916.

Almost surely, 2^12748500 is an apocalyptic number.

12748500 is a gapful number since it is divisible by the number (10) 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 12748500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20115732).

12748500 is an abundant number, since it is smaller than the sum of its proper divisors (27482964).

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

12748500 is a wasteful number, since it uses less digits than its factorization.

12748500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2858 (or 2843 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 12748500 is about 3570.5041660808. The cubic root of 12748500 is about 233.6072746296.

The spelling of 12748500 in words is "twelve million, seven hundred forty-eight thousand, five hundred".