438056012164 has 27 divisors (see below), whose sum is σ = 772125151791. Its totient is φ = 217460064480.

The previous prime is 438056012159. The next prime is 438056012167. The reversal of 438056012164 is 461210650834.

It is a happy number.

The square root of 438056012164 is 661858.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 27636402564 + 410419609600 = 166242^2 + 640640^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (438056012167) 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 8 ways as a sum of consecutive naturals, for example, 197232574 + ... + 197234794.

Almost surely, 2^438056012164 is an apocalyptic number.

438056012164 is the 661858-th square number.

It is an amenable number.

438056012164 is a deficient number, since it is larger than the sum of its proper divisors (334069139627).

438056012164 is an frugal number, since it uses more digits than its factorization.

438056012164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4744 (or 2372 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

Adding to 438056012164 its reverse (461210650834), we get a palindrome (899266662998).

The spelling of 438056012164 in words is "four hundred thirty-eight billion, fifty-six million, twelve thousand, one hundred sixty-four".