13945814 has 8 divisors (see below), whose sum is σ = 22149288. Its totient is φ = 6562720.

The previous prime is 13945807. The next prime is 13945817. The reversal of 13945814 is 41854931.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13945817) 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, 205052 + ... + 205119.

It is an arithmetic number, because the mean of its divisors is an integer number (2768661).

Almost surely, 2^13945814 is an apocalyptic number.

13945814 is a deficient number, since it is larger than the sum of its proper divisors (8203474).

13945814 is a wasteful number, since it uses less digits than its factorization.

13945814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410190.

The product of its digits is 17280, while the sum is 35.

The square root of 13945814 is about 3734.4094580000. The cubic root of 13945814 is about 240.7028816094.

The spelling of 13945814 in words is "thirteen million, nine hundred forty-five thousand, eight hundred fourteen".