14457421 has 8 divisors (see below), whose sum is σ = 15811488. Its totient is φ = 13110000.

The previous prime is 14457413. The next prime is 14457449. The reversal of 14457421 is 12475441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 14457421 - 2³ = 14457413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 14457421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14457451) 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 7 ways as a sum of consecutive naturals, for example, 3646 + ... + 6496.

It is an arithmetic number, because the mean of its divisors is an integer number (1976436).

Almost surely, 2^14457421 is an apocalyptic number.

14457421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

14457421 is a deficient number, since it is larger than the sum of its proper divisors (1354067).

14457421 is a wasteful number, since it uses less digits than its factorization.

14457421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3323.

The product of its digits is 4480, while the sum is 28.

The square root of 14457421 is about 3802.2915458970. The cubic root of 14457421 is about 243.6110269822.

It can be divided in two parts, 14457 and 421, that added together give a triangular number (14878 = T₁₇₂).

The spelling of 14457421 in words is "fourteen million, four hundred fifty-seven thousand, four hundred twenty-one".