12748572 has 72 divisors (see below), whose sum is σ = 35105616. Its totient is φ = 3884544.

The previous prime is 12748553. The next prime is 12748579. The reversal of 12748572 is 27584721.

12748572 is a `hidden beast` number, since 12 + 74 + 8 + 572 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12748579) 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, 22363 + ... + 22925.

It is an arithmetic number, because the mean of its divisors is an integer number (487578).

Almost surely, 2^12748572 is an apocalyptic number.

12748572 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 12748572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17552808).

12748572 is an abundant number, since it is smaller than the sum of its proper divisors (22357044).

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

12748572 is a wasteful number, since it uses less digits than its factorization.

12748572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627 (or 622 counting only the distinct ones).

The product of its digits is 31360, while the sum is 36.

The square root of 12748572 is about 3570.5142486762. The cubic root of 12748572 is about 233.6077144118.

The spelling of 12748572 in words is "twelve million, seven hundred forty-eight thousand, five hundred seventy-two".