14213381 has 24 divisors (see below), whose sum is σ = 18184824. Its totient is φ = 11007360.

The previous prime is 14213371. The next prime is 14213383. The reversal of 14213381 is 18331241.

It can be written as a sum of positive squares in 4 ways, for example, as 30625 + 14182756 = 175^2 + 3766^2 .

It is not a de Polignac number, because 14213381 - 2¹⁴ = 14196997 is a prime.

It is a super-2 number, since 2×14213381² = 404040398902322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14213383) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33551 + ... + 33971.

It is an arithmetic number, because the mean of its divisors is an integer number (757701).

Almost surely, 2^14213381 is an apocalyptic number.

It is an amenable number.

14213381 is a deficient number, since it is larger than the sum of its proper divisors (3971443).

14213381 is a wasteful number, since it uses less digits than its factorization.

14213381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501 (or 494 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

The square root of 14213381 is about 3770.0637925637. The cubic root of 14213381 is about 242.2325304073.

The spelling of 14213381 in words is "fourteen million, two hundred thirteen thousand, three hundred eighty-one".