538321356 has 48 divisors (see below), whose sum is σ = 1397222400. Its totient is φ = 179238096.

The previous prime is 538321351. The next prime is 538321373. The reversal of 538321356 is 653123835.

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

It is a self number, because there is not a number n which added to its sum of digits gives 538321356.

It is not an unprimeable number, because it can be changed into a prime (538321351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116865 + ... + 121383.

It is an arithmetic number, because the mean of its divisors is an integer number (29108800).

Almost surely, 2^538321356 is an apocalyptic number.

It is an amenable number.

538321356 is an abundant number, since it is smaller than the sum of its proper divisors (858901044).

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

538321356 is a wasteful number, since it uses less digits than its factorization.

538321356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5635 (or 5627 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 538321356 is about 23201.7532958180. The cubic root of 538321356 is about 813.4806052555.

The spelling of 538321356 in words is "five hundred thirty-eight million, three hundred twenty-one thousand, three hundred fifty-six".