12820496 has 20 divisors (see below), whose sum is σ = 26750892. Its totient is φ = 5917056.

The previous prime is 12820487. The next prime is 12820529. The reversal of 12820496 is 69402821.

It can be written as a sum of positive squares in 2 ways, for example, as 2062096 + 10758400 = 1436^2 + 3280^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30611 + ... + 31026.

Almost surely, 2^12820496 is an apocalyptic number.

12820496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12820496 is an abundant number, since it is smaller than the sum of its proper divisors (13930396).

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

12820496 is a wasteful number, since it uses less digits than its factorization.

12820496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61658 (or 61652 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 12820496 is about 3580.5720213396. The cubic root of 12820496 is about 234.0462080320.

The spelling of 12820496 in words is "twelve million, eight hundred twenty thousand, four hundred ninety-six".