12809484 has 18 divisors (see below), whose sum is σ = 32379620. Its totient is φ = 4269816.

The previous prime is 12809359. The next prime is 12809491. The reversal of 12809484 is 48490821.

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 355819 = 12809484 / (1 + 2 + 8 + 0 + 9 + 4 + 8 + 4).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 177874 + ... + 177945.

Almost surely, 2^12809484 is an apocalyptic number.

It is an amenable number.

12809484 is an abundant number, since it is smaller than the sum of its proper divisors (19570136).

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

12809484 is a wasteful number, since it uses less digits than its factorization.

12809484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355829 (or 355824 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 12809484 is about 3579.0339478692. The cubic root of 12809484 is about 233.9791785111.

The spelling of 12809484 in words is "twelve million, eight hundred nine thousand, four hundred eighty-four".