538320980 has 144 divisors (see below), whose sum is σ = 1299355344. Its totient is φ = 186531840.

The previous prime is 538320967. The next prime is 538321001. The reversal of 538320980 is 89023835.

It can be written as a sum of positive squares in 8 ways, for example, as 15649936 + 522671044 = 3956^2 + 22862^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7374224 + ... + 7374296.

It is an arithmetic number, because the mean of its divisors is an integer number (9023301).

Almost surely, 2^538320980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 538320980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (649677672).

538320980 is an abundant number, since it is smaller than the sum of its proper divisors (761034364).

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

538320980 is a wasteful number, since it uses less digits than its factorization.

538320980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 538320980 is about 23201.7451929806. The cubic root of 538320980 is about 813.4804158588.

The spelling of 538320980 in words is "five hundred thirty-eight million, three hundred twenty thousand, nine hundred eighty".