439872438 has 8 divisors (see below), whose sum is σ = 879744888. Its totient is φ = 146624144.

The previous prime is 439872431. The next prime is 439872449. The reversal of 439872438 is 834278934.

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

439872438 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (439872431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36656031 + ... + 36656042.

It is an arithmetic number, because the mean of its divisors is an integer number (109968111).

Almost surely, 2^439872438 is an apocalyptic number.

439872438 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

439872438 is a wasteful number, since it uses less digits than its factorization.

439872438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73312078.

The product of its digits is 1161216, while the sum is 48.

The square root of 439872438 is about 20973.1361031201. The cubic root of 439872438 is about 760.5169831963.

The spelling of 439872438 in words is "four hundred thirty-nine million, eight hundred seventy-two thousand, four hundred thirty-eight".