14456421 has 40 divisors (see below), whose sum is σ = 25096960. Its totient is φ = 8223768.

The previous prime is 14456383. The next prime is 14456423. The reversal of 14456421 is 12465441.

14456421 is a `hidden beast` number, since 14 + 4 + 5 + 642 + 1 = 666.

It is not a de Polignac number, because 14456421 - 2⁷ = 14456293 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14456423) 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 39 ways as a sum of consecutive naturals, for example, 64716 + ... + 64938.

It is an arithmetic number, because the mean of its divisors is an integer number (627424).

Almost surely, 2^14456421 is an apocalyptic number.

It is an amenable number.

14456421 is a deficient number, since it is larger than the sum of its proper divisors (10640539).

14456421 is an frugal number, since it uses more digits than its factorization.

14456421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260 (or 233 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 14456421 is about 3802.1600439750. The cubic root of 14456421 is about 243.6054101058.

It can be divided in two parts, 144 and 56421, that added together give a palindrome (56565).

The spelling of 14456421 in words is "fourteen million, four hundred fifty-six thousand, four hundred twenty-one".