16438113 has 8 divisors (see below), whose sum is σ = 24352800. Its totient is φ = 10958724.

The previous prime is 16438063. The next prime is 16438141. The reversal of 16438113 is 31183461.

16438113 is a `hidden beast` number, since 1 + 643 + 8 + 1 + 13 = 666.

It is not a de Polignac number, because 16438113 - 2⁹ = 16437601 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 608819 = 16438113 / (1 + 6 + 4 + 3 + 8 + 1 + 1 + 3).

It is not an unprimeable number, because it can be changed into a prime (16438183) 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, 304383 + ... + 304436.

It is an arithmetic number, because the mean of its divisors is an integer number (3044100).

Almost surely, 2^16438113 is an apocalyptic number.

It is an amenable number.

16438113 is a deficient number, since it is larger than the sum of its proper divisors (7914687).

16438113 is an equidigital number, since it uses as much as digits as its factorization.

16438113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608828 (or 608822 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 16438113 is about 4054.3942827505. The cubic root of 16438113 is about 254.2634802853.

The spelling of 16438113 in words is "sixteen million, four hundred thirty-eight thousand, one hundred thirteen".