14478457 has 8 divisors (see below), whose sum is σ = 17080832. Its totient is φ = 12009600.

The previous prime is 14478449. The next prime is 14478461. The reversal of 14478457 is 75487441.

It is a happy number.

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 14478457 - 2³ = 14478449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14478467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33144 + ... + 33577.

It is an arithmetic number, because the mean of its divisors is an integer number (2135104).

Almost surely, 2^14478457 is an apocalyptic number.

It is an amenable number.

14478457 is a deficient number, since it is larger than the sum of its proper divisors (2602375).

14478457 is an equidigital number, since it uses as much as digits as its factorization.

14478457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66759.

The product of its digits is 125440, while the sum is 40.

The square root of 14478457 is about 3805.0567669878. The cubic root of 14478457 is about 243.7291236120.

The spelling of 14478457 in words is "fourteen million, four hundred seventy-eight thousand, four hundred fifty-seven".