14309381 has 8 divisors (see below), whose sum is σ = 14981760. Its totient is φ = 13641232.

The previous prime is 14309353. The next prime is 14309419. The reversal of 14309381 is 18390341.

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

It is a cyclic number.

It is not a de Polignac number, because 14309381 - 2¹⁸ = 14047237 is a prime.

It is a super-2 number, since 2×14309381² = 409516769206322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14309341) 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, 7391 + ... + 9123.

It is an arithmetic number, because the mean of its divisors is an integer number (1872720).

Almost surely, 2^14309381 is an apocalyptic number.

It is an amenable number.

14309381 is a deficient number, since it is larger than the sum of its proper divisors (672379).

14309381 is a wasteful number, since it uses less digits than its factorization.

14309381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2115.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 14309381 is about 3782.7742465022. The cubic root of 14309381 is about 242.7766693826.

It can be divided in two parts, 14 and 309381, that multiplied together give a palindrome (4331334).

The spelling of 14309381 in words is "fourteen million, three hundred nine thousand, three hundred eighty-one".