438621159 has 4 divisors (see below), whose sum is σ = 584828216. Its totient is φ = 292414104.

The previous prime is 438621149. The next prime is 438621179. The reversal of 438621159 is 951126834.

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

It is not a de Polignac number, because 438621159 - 2⁹ = 438620647 is a prime.

It is a super-2 number, since 2×438621159² = 384777042245006562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438621119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73103524 + ... + 73103529.

It is an arithmetic number, because the mean of its divisors is an integer number (146207054).

Almost surely, 2^438621159 is an apocalyptic number.

438621159 is a deficient number, since it is larger than the sum of its proper divisors (146207057).

438621159 is a wasteful number, since it uses less digits than its factorization.

438621159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146207056.

The product of its digits is 51840, while the sum is 39.

The square root of 438621159 is about 20943.2843412871. The cubic root of 438621159 is about 759.7951658279.

The spelling of 438621159 in words is "four hundred thirty-eight million, six hundred twenty-one thousand, one hundred fifty-nine".