12802520 has 16 divisors (see below), whose sum is σ = 28805760. Its totient is φ = 5120992.

The previous prime is 12802487. The next prime is 12802529. The reversal of 12802520 is 2520821.

12802520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 12802492 and 12802501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12802529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159992 + ... + 160071.

It is an arithmetic number, because the mean of its divisors is an integer number (1800360).

Almost surely, 2^12802520 is an apocalyptic number.

12802520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12802520 is an abundant number, since it is smaller than the sum of its proper divisors (16003240).

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

12802520 is a wasteful number, since it uses less digits than its factorization.

12802520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320074 (or 320070 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 12802520 is about 3578.0609273739. The cubic root of 12802520 is about 233.9367691428.

The spelling of 12802520 in words is "twelve million, eight hundred two thousand, five hundred twenty".