538181280 has 576 divisors, whose sum is σ = 2382670080. Its totient is φ = 110481408.

The previous prime is 538181269. The next prime is 538181299. The reversal of 538181280 is 82181835.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 14545422 + ... + 14545458.

It is an arithmetic number, because the mean of its divisors is an integer number (4136580).

Almost surely, 2^538181280 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 538181280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1191335040).

538181280 is an abundant number, since it is smaller than the sum of its proper divisors (1844488800).

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

538181280 is a wasteful number, since it uses less digits than its factorization.

538181280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118 (or 67 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 36.

The square root of 538181280 is about 23198.7344482409. The cubic root of 538181280 is about 813.4100408408.

The spelling of 538181280 in words is "five hundred thirty-eight million, one hundred eighty-one thousand, two hundred eighty".