438321208073 has 24 divisors (see below), whose sum is σ = 539685357120. Its totient is φ = 353963403360.

The previous prime is 438321208033. The next prime is 438321208133. The reversal of 438321208073 is 370802123834.

It is not a de Polignac number, because 438321208073 - 2⁸ = 438321207817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 438321208073.

It is not an unprimeable number, because it can be changed into a prime (438321208033) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1132061 + ... + 1469082.

It is an arithmetic number, because the mean of its divisors is an integer number (22486889880).

Almost surely, 2^438321208073 is an apocalyptic number.

It is an amenable number.

438321208073 is a deficient number, since it is larger than the sum of its proper divisors (101364149047).

438321208073 is a wasteful number, since it uses less digits than its factorization.

438321208073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2601357 (or 2601350 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 41.

The spelling of 438321208073 in words is "four hundred thirty-eight billion, three hundred twenty-one million, two hundred eight thousand, seventy-three".