14431021 has 16 divisors (see below), whose sum is σ = 16293888. Its totient is φ = 12668400.

The previous prime is 14431003. The next prime is 14431031. The reversal of 14431021 is 12013441.

It is a cyclic number.

It is not a de Polignac number, because 14431021 - 2⁵ = 14430989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14430986 and 14431004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14431031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53116 + ... + 53386.

It is an arithmetic number, because the mean of its divisors is an integer number (1018368).

Almost surely, 2^14431021 is an apocalyptic number.

14431021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

14431021 is a deficient number, since it is larger than the sum of its proper divisors (1862867).

14431021 is a wasteful number, since it uses less digits than its factorization.

14431021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 14431021 is about 3798.8183689142. The cubic root of 14431021 is about 243.4626545135.

Adding to 14431021 its reverse (12013441), we get a palindrome (26444462).

The spelling of 14431021 in words is "fourteen million, four hundred thirty-one thousand, twenty-one".