438738841 has 8 divisors (see below), whose sum is σ = 444960864. Its totient is φ = 432556320.

The previous prime is 438738793. The next prime is 438738851. The reversal of 438738841 is 148837834.

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

It is a cyclic number.

It is not a de Polignac number, because 438738841 - 2²³ = 430350233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 438738791 and 438738800.

It is not an unprimeable number, because it can be changed into a prime (438738851) 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, 12861 + ... + 32293.

It is an arithmetic number, because the mean of its divisors is an integer number (55620108).

Almost surely, 2^438738841 is an apocalyptic number.

It is an amenable number.

438738841 is a deficient number, since it is larger than the sum of its proper divisors (6222023).

438738841 is a wasteful number, since it uses less digits than its factorization.

438738841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19751.

The product of its digits is 516096, while the sum is 46.

The square root of 438738841 is about 20946.0936930970. The cubic root of 438738841 is about 759.8631107331.

The spelling of 438738841 in words is "four hundred thirty-eight million, seven hundred thirty-eight thousand, eight hundred forty-one".