13940306 has 8 divisors (see below), whose sum is σ = 22140540. Its totient is φ = 6560128.

The previous prime is 13940293. The next prime is 13940317. The reversal of 13940306 is 60304931.

13940306 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12355225 + 1585081 = 3515^2 + 1259^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204971 + ... + 205038.

Almost surely, 2^13940306 is an apocalyptic number.

13940306 is a deficient number, since it is larger than the sum of its proper divisors (8200234).

13940306 is a wasteful number, since it uses less digits than its factorization.

13940306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410028.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 13940306 is about 3733.6719191702. The cubic root of 13940306 is about 240.6711883225.

The spelling of 13940306 in words is "thirteen million, nine hundred forty thousand, three hundred six".