13319428 has 12 divisors (see below), whose sum is σ = 23439052. Its totient is φ = 6622560.

The previous prime is 13319363. The next prime is 13319431. The reversal of 13319428 is 82491331.

It can be written as a sum of positive squares in 2 ways, for example, as 5299204 + 8020224 = 2302^2 + 2832^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13319428.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 8475 + ... + 9922.

Almost surely, 2^13319428 is an apocalyptic number.

It is an amenable number.

13319428 is a deficient number, since it is larger than the sum of its proper divisors (10119624).

13319428 is a wasteful number, since it uses less digits than its factorization.

13319428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18582 (or 18580 counting only the distinct ones).

The product of its digits is 5184, while the sum is 31.

The square root of 13319428 is about 3649.5791538203. The cubic root of 13319428 is about 237.0437586479.

The spelling of 13319428 in words is "thirteen million, three hundred nineteen thousand, four hundred twenty-eight".