438755700828 has 24 divisors (see below), whose sum is σ = 1027406595600. Its totient is φ = 145731429760.

The previous prime is 438755700821. The next prime is 438755700839. The reversal of 438755700828 is 828007557834.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438755700821) 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, 65055303 + ... + 65062046.

It is an arithmetic number, because the mean of its divisors is an integer number (42808608150).

Almost surely, 2^438755700828 is an apocalyptic number.

It is an amenable number.

438755700828 is an abundant number, since it is smaller than the sum of its proper divisors (588650894772).

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

438755700828 is a wasteful number, since it uses less digits than its factorization.

438755700828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130117637 (or 130117635 counting only the distinct ones).

The product of its (nonzero) digits is 15052800, while the sum is 57.

The spelling of 438755700828 in words is "four hundred thirty-eight billion, seven hundred fifty-five million, seven hundred thousand, eight hundred twenty-eight".