13378028 has 6 divisors (see below), whose sum is σ = 23411556. Its totient is φ = 6689012.

The previous prime is 13378009. The next prime is 13378063. The reversal of 13378028 is 82087331.

It is a junction number, because it is equal to n+sod(n) for n = 13377985 and 13378003.

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 as a sum of consecutive naturals, namely, 1672250 + ... + 1672257.

It is an arithmetic number, because the mean of its divisors is an integer number (3901926).

Almost surely, 2^13378028 is an apocalyptic number.

It is an amenable number.

13378028 is a deficient number, since it is larger than the sum of its proper divisors (10033528).

13378028 is a wasteful number, since it uses less digits than its factorization.

13378028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3344511 (or 3344509 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 13378028 is about 3657.5986657915. The cubic root of 13378028 is about 237.3908817298.

The spelling of 13378028 in words is "thirteen million, three hundred seventy-eight thousand, twenty-eight".