13940307 has 6 divisors (see below), whose sum is σ = 20136012. Its totient is φ = 9293532.

The previous prime is 13940293. The next prime is 13940317. The reversal of 13940307 is 70304931.

It is not a de Polignac number, because 13940307 - 2¹⁹ = 13416019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13940317) 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, 774453 + ... + 774470.

It is an arithmetic number, because the mean of its divisors is an integer number (3356002).

Almost surely, 2^13940307 is an apocalyptic number.

13940307 is a deficient number, since it is larger than the sum of its proper divisors (6195705).

13940307 is a wasteful number, since it uses less digits than its factorization.

13940307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548929 (or 1548926 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 13940307 is about 3733.6720530866. The cubic root of 13940307 is about 240.6711940773.

The spelling of 13940307 in words is "thirteen million, nine hundred forty thousand, three hundred seven".