14491478 has 4 divisors (see below), whose sum is σ = 21737220. Its totient is φ = 7245738.

The previous prime is 14491447. The next prime is 14491481. The reversal of 14491478 is 87419441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87419441 = 7993 ⋅10937.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3622868 + ... + 3622871.

It is an arithmetic number, because the mean of its divisors is an integer number (5434305).

Almost surely, 2^14491478 is an apocalyptic number.

14491478 is a deficient number, since it is larger than the sum of its proper divisors (7245742).

14491478 is an equidigital number, since it uses as much as digits as its factorization.

14491478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7245741.

The product of its digits is 32256, while the sum is 38.

The square root of 14491478 is about 3806.7673950479. The cubic root of 14491478 is about 243.8021665248.

The spelling of 14491478 in words is "fourteen million, four hundred ninety-one thousand, four hundred seventy-eight".