13219808 has 36 divisors (see below), whose sum is σ = 30279312. Its totient is φ = 5664960.

The previous prime is 13219777. The next prime is 13219813. The reversal of 13219808 is 80891231.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2648 + ... + 5783.

It is an arithmetic number, because the mean of its divisors is an integer number (841092).

Almost surely, 2^13219808 is an apocalyptic number.

It is an amenable number.

13219808 is an abundant number, since it is smaller than the sum of its proper divisors (17059504).

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

13219808 is an equidigital number, since it uses as much as digits as its factorization.

13219808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8455 (or 8440 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 13219808 is about 3635.9053893081. The cubic root of 13219808 is about 236.4513053308.

The spelling of 13219808 in words is "thirteen million, two hundred nineteen thousand, eight hundred eight".