14421431 has 4 divisors (see below), whose sum is σ = 14454000. Its totient is φ = 14388864.

The previous prime is 14421419. The next prime is 14421443. The reversal of 14421431 is 13412441.

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

It is an interprime number because it is at equal distance from previous prime (14421419) and next prime (14421443).

It is a cyclic number.

It is not a de Polignac number, because 14421431 - 2¹⁴ = 14405047 is a prime.

It is a super-2 number, since 2×14421431² = 415955344175522, 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 (14421401) 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, 15611 + ... + 16508.

It is an arithmetic number, because the mean of its divisors is an integer number (3613500).

Almost surely, 2^14421431 is an apocalyptic number.

14421431 is a deficient number, since it is larger than the sum of its proper divisors (32569).

14421431 is an equidigital number, since it uses as much as digits as its factorization.

14421431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32568.

The product of its digits is 384, while the sum is 20.

The square root of 14421431 is about 3797.5559245388. Note that the first 3 decimals coincide. The cubic root of 14421431 is about 243.4087122863.

Adding to 14421431 its reverse (13412441), we get a palindrome (27833872).

The spelling of 14421431 in words is "fourteen million, four hundred twenty-one thousand, four hundred thirty-one".