14001406 has 4 divisors (see below), whose sum is σ = 21002112. Its totient is φ = 7000702.

The previous prime is 14001401. The next prime is 14001419. The reversal of 14001406 is 60410041.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 14001406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14001401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3500350 + ... + 3500353.

It is an arithmetic number, because the mean of its divisors is an integer number (5250528).

Almost surely, 2^14001406 is an apocalyptic number.

14001406 is a deficient number, since it is larger than the sum of its proper divisors (7000706).

14001406 is an equidigital number, since it uses as much as digits as its factorization.

14001406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7000705.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 14001406 is about 3741.8452667100. The cubic root of 14001406 is about 241.0222943856.

Adding to 14001406 its reverse (60410041), we get a palindrome (74411447).

The spelling of 14001406 in words is "fourteen million, one thousand, four hundred six".