14478381 has 24 divisors (see below), whose sum is σ = 21565440. Its totient is φ = 9356256.

The previous prime is 14478367. The next prime is 14478389. The reversal of 14478381 is 18387441.

It is not a de Polignac number, because 14478381 - 2⁵ = 14478349 is a prime.

It is a super-2 number, since 2×14478381² = 419247032762322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14478389) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60460 + ... + 60698.

It is an arithmetic number, because the mean of its divisors is an integer number (898560).

Almost surely, 2^14478381 is an apocalyptic number.

It is an amenable number.

14478381 is a deficient number, since it is larger than the sum of its proper divisors (7087059).

14478381 is a wasteful number, since it uses less digits than its factorization.

14478381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425 (or 422 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 14478381 is about 3805.0467802643. The cubic root of 14478381 is about 243.7286971521.

The spelling of 14478381 in words is "fourteen million, four hundred seventy-eight thousand, three hundred eighty-one".