14406561 has 24 divisors (see below), whose sum is σ = 22800960. Its totient is φ = 8711136.

The previous prime is 14406551. The next prime is 14406563. The reversal of 14406561 is 16560441.

14406561 is a `hidden beast` number, since 1 + 4 + 4 + 0 + 656 + 1 = 666.

It is not a de Polignac number, because 14406561 - 2⁵ = 14406529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (14406563) 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, 5860 + ... + 7946.

It is an arithmetic number, because the mean of its divisors is an integer number (950040).

Almost surely, 2^14406561 is an apocalyptic number.

It is an amenable number.

14406561 is a deficient number, since it is larger than the sum of its proper divisors (8394399).

14406561 is a wasteful number, since it uses less digits than its factorization.

14406561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2165 (or 2162 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 14406561 is about 3795.5975814093. The cubic root of 14406561 is about 243.3250235898.

It can be divided in two parts, 1440 and 6561, that added together give a triangular number (8001 = T₁₂₆).

The spelling of 14406561 in words is "fourteen million, four hundred six thousand, five hundred sixty-one".