13268378 has 12 divisors (see below), whose sum is σ = 20807178. Its totient is φ = 6345240.

The previous prime is 13268371. The next prime is 13268393. The reversal of 13268378 is 87386231.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9078169 + 4190209 = 3013^2 + 2047^2 .

It is not an unprimeable number, because it can be changed into a prime (13268371) by changing a digit.

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, 5213 + ... + 7328.

Almost surely, 2^13268378 is an apocalyptic number.

13268378 is a deficient number, since it is larger than the sum of its proper divisors (7538800).

13268378 is a wasteful number, since it uses less digits than its factorization.

13268378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12589 (or 12566 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 13268378 is about 3642.5784823391. The cubic root of 13268378 is about 236.7405279833.

The spelling of 13268378 in words is "thirteen million, two hundred sixty-eight thousand, three hundred seventy-eight".