14421381 has 32 divisors (see below), whose sum is σ = 22014720. Its totient is φ = 8332800.

The previous prime is 14421377. The next prime is 14421401. The reversal of 14421381 is 18312441.

It is not a de Polignac number, because 14421381 - 2² = 14421377 is a prime.

It is a super-2 number, since 2×14421381² = 415952459894322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14421301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46216 + ... + 46526.

It is an arithmetic number, because the mean of its divisors is an integer number (687960).

Almost surely, 2^14421381 is an apocalyptic number.

It is an amenable number.

14421381 is a deficient number, since it is larger than the sum of its proper divisors (7593339).

14421381 is a wasteful number, since it uses less digits than its factorization.

14421381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397.

The product of its digits is 768, while the sum is 24.

The square root of 14421381 is about 3797.5493413516. The cubic root of 14421381 is about 243.4084309816.

The spelling of 14421381 in words is "fourteen million, four hundred twenty-one thousand, three hundred eighty-one".