12725040 has 80 divisors (see below), whose sum is σ = 40542048. Its totient is φ = 3299328.

The previous prime is 12725039. The next prime is 12725051. The reversal of 12725040 is 4052721.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 12724998 and 12725016.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8164 + ... + 9596.

Almost surely, 2^12725040 is an apocalyptic number.

12725040 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 12725040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20271024).

12725040 is an abundant number, since it is smaller than the sum of its proper divisors (27817008).

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

12725040 is a wasteful number, since it uses less digits than its factorization.

12725040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1486 (or 1480 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 12725040 is about 3567.2174029627. The cubic root of 12725040 is about 233.4638906543.

Adding to 12725040 its reverse (4052721), we get a palindrome (16777761).

The spelling of 12725040 in words is "twelve million, seven hundred twenty-five thousand, forty".