438280328730 has 64 divisors (see below), whose sum is σ = 1080443992320. Its totient is φ = 113701008384.

The previous prime is 438280328663. The next prime is 438280328779. The reversal of 438280328730 is 37823082834.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 438280328730.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 10233922 + ... + 10276658.

It is an arithmetic number, because the mean of its divisors is an integer number (16881937380).

Almost surely, 2^438280328730 is an apocalyptic number.

438280328730 is an abundant number, since it is smaller than the sum of its proper divisors (642163663590).

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

438280328730 is a wasteful number, since it uses less digits than its factorization.

438280328730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52023.

The product of its (nonzero) digits is 1548288, while the sum is 48.

The spelling of 438280328730 in words is "four hundred thirty-eight billion, two hundred eighty million, three hundred twenty-eight thousand, seven hundred thirty".