12845456 has 20 divisors (see below), whose sum is σ = 26802972. Its totient is φ = 5928576.

The previous prime is 12845453. The next prime is 12845461. The reversal of 12845456 is 65454821.

It can be written as a sum of positive squares in 2 ways, for example, as 1849600 + 10995856 = 1360^2 + 3316^2 .

It is not an unprimeable number, because it can be changed into a prime (12845453) 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, 30671 + ... + 31086.

Almost surely, 2^12845456 is an apocalyptic number.

12845456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12845456 is an abundant number, since it is smaller than the sum of its proper divisors (13957516).

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

12845456 is a wasteful number, since it uses less digits than its factorization.

12845456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61778 (or 61772 counting only the distinct ones).

The product of its digits is 38400, while the sum is 35.

The square root of 12845456 is about 3584.0558031370. The cubic root of 12845456 is about 234.1979963963.

The spelling of 12845456 in words is "twelve million, eight hundred forty-five thousand, four hundred fifty-six".