438065071 has 4 divisors (see below), whose sum is σ = 438107272. Its totient is φ = 438022872.

The previous prime is 438065057. The next prime is 438065093. The reversal of 438065071 is 170560834.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 438065071 - 2¹⁵ = 438032303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438065041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6541 + ... + 30313.

It is an arithmetic number, because the mean of its divisors is an integer number (109526818).

Almost surely, 2^438065071 is an apocalyptic number.

438065071 is a deficient number, since it is larger than the sum of its proper divisors (42201).

438065071 is a wasteful number, since it uses less digits than its factorization.

438065071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42200.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 438065071 is about 20930.0040850450. The cubic root of 438065071 is about 759.4739382365.

The spelling of 438065071 in words is "four hundred thirty-eight million, sixty-five thousand, seventy-one".