14005381 has 4 divisors (see below), whose sum is σ = 15082732. Its totient is φ = 12928032.

The previous prime is 14005363. The next prime is 14005393. The reversal of 14005381 is 18350041.

14005381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7924225 + 6081156 = 2815^2 + 2466^2 .

It is not a de Polignac number, because 14005381 - 2⁵ = 14005349 is a prime.

It is a super-2 number, since 2×14005381² = 392301393910322, 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 (14005081) 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, 538656 + ... + 538681.

It is an arithmetic number, because the mean of its divisors is an integer number (3770683).

Almost surely, 2^14005381 is an apocalyptic number.

It is an amenable number.

14005381 is a deficient number, since it is larger than the sum of its proper divisors (1077351).

14005381 is a wasteful number, since it uses less digits than its factorization.

14005381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077350.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 14005381 is about 3742.3763840640. The cubic root of 14005381 is about 241.0451009754.

The spelling of 14005381 in words is "fourteen million, five thousand, three hundred eighty-one".