438530099 has 4 divisors (see below), whose sum is σ = 501177264. Its totient is φ = 375882936.

The previous prime is 438530063. The next prime is 438530117. The reversal of 438530099 is 990035834.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 438530099 - 2²⁸ = 170094643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (438539099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31323572 + ... + 31323585.

It is an arithmetic number, because the mean of its divisors is an integer number (125294316).

Almost surely, 2^438530099 is an apocalyptic number.

438530099 is a deficient number, since it is larger than the sum of its proper divisors (62647165).

438530099 is an equidigital number, since it uses as much as digits as its factorization.

438530099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62647164.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 438530099 is about 20941.1102618748. The cubic root of 438530099 is about 759.7425830657.

The spelling of 438530099 in words is "four hundred thirty-eight million, five hundred thirty thousand, ninety-nine".