13378236 has 24 divisors (see below), whose sum is σ = 32223744. Its totient is φ = 4315440.

The previous prime is 13378231. The next prime is 13378237. The reversal of 13378236 is 63287331.

It is a junction number, because it is equal to n+sod(n) for n = 13378197 and 13378206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13378231) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 17610 + ... + 18353.

It is an arithmetic number, because the mean of its divisors is an integer number (1342656).

Almost surely, 2^13378236 is an apocalyptic number.

It is an amenable number.

13378236 is an abundant number, since it is smaller than the sum of its proper divisors (18845508).

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

13378236 is a wasteful number, since it uses less digits than its factorization.

13378236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36001 (or 35999 counting only the distinct ones).

The product of its digits is 18144, while the sum is 33.

The square root of 13378236 is about 3657.6270996371. The cubic root of 13378236 is about 237.3921120318.

The spelling of 13378236 in words is "thirteen million, three hundred seventy-eight thousand, two hundred thirty-six".