13009378 has 8 divisors (see below), whose sum is σ = 19587420. Its totient is φ = 6480240.

The previous prime is 13009343. The next prime is 13009379. The reversal of 13009378 is 87390031.

It can be written as a sum of positive squares in 2 ways, for example, as 12766329 + 243049 = 3573^2 + 493^2 .

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

It is not an unprimeable number, because it can be changed into a prime (13009379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11553 + ... + 12628.

Almost surely, 2^13009378 is an apocalyptic number.

13009378 is a deficient number, since it is larger than the sum of its proper divisors (6578042).

13009378 is a wasteful number, since it uses less digits than its factorization.

13009378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24452.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 13009378 is about 3606.8515356194. The cubic root of 13009378 is about 235.1899957373.

The spelling of 13009378 in words is "thirteen million, nine thousand, three hundred seventy-eight".