13740009 has 8 divisors (see below), whose sum is σ = 18482592. Its totient is φ = 9078720.

The previous prime is 13739989. The next prime is 13740017. The reversal of 13740009 is 90004731.

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

It is not a de Polignac number, because 13740009 - 2⁸ = 13739753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13740019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19927 + ... + 20604.

It is an arithmetic number, because the mean of its divisors is an integer number (2310324).

Almost surely, 2^13740009 is an apocalyptic number.

It is an amenable number.

13740009 is a deficient number, since it is larger than the sum of its proper divisors (4742583).

13740009 is a wasteful number, since it uses less digits than its factorization.

13740009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40647.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 13740009 is about 3706.7518125712. The cubic root of 13740009 is about 239.5129532469.

The spelling of 13740009 in words is "thirteen million, seven hundred forty thousand, nine".