438228147 has 8 divisors (see below), whose sum is σ = 667776256. Its totient is φ = 250416072.

The previous prime is 438228139. The next prime is 438228149. The reversal of 438228147 is 741822834.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 438228147 - 2³ = 438228139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (438228149) 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, 10433983 + ... + 10434024.

It is an arithmetic number, because the mean of its divisors is an integer number (83472032).

Almost surely, 2^438228147 is an apocalyptic number.

438228147 is a deficient number, since it is larger than the sum of its proper divisors (229548109).

438228147 is a wasteful number, since it uses less digits than its factorization.

438228147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20868017.

The product of its digits is 86016, while the sum is 39.

The square root of 438228147 is about 20933.8994695207. The cubic root of 438228147 is about 759.5681682301.

The spelling of 438228147 in words is "four hundred thirty-eight million, two hundred twenty-eight thousand, one hundred forty-seven".