13345378 has 8 divisors (see below), whose sum is σ = 20040300. Its totient is φ = 6665280.

The previous prime is 13345369. The next prime is 13345379. The reversal of 13345378 is 87354331.

It can be written as a sum of positive squares in 2 ways, for example, as 13198689 + 146689 = 3633^2 + 383^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×13345378² = 356198227925768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13345379) 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 3 ways as a sum of consecutive naturals, for example, 1083 + ... + 5278.

Almost surely, 2^13345378 is an apocalyptic number.

13345378 is a deficient number, since it is larger than the sum of its proper divisors (6694922).

13345378 is a wasteful number, since it uses less digits than its factorization.

13345378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7412.

The product of its digits is 30240, while the sum is 34.

The square root of 13345378 is about 3653.1326283068. The cubic root of 13345378 is about 237.1976014666.

The spelling of 13345378 in words is "thirteen million, three hundred forty-five thousand, three hundred seventy-eight".