538309860 has 48 divisors (see below), whose sum is σ = 1644293952. Its totient is φ = 130499200.

The previous prime is 538309829. The next prime is 538309873. The reversal of 538309860 is 68903835.

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 15 ways as a sum of consecutive naturals, for example, 407151 + ... + 408470.

It is an arithmetic number, because the mean of its divisors is an integer number (34256124).

Almost surely, 2^538309860 is an apocalyptic number.

It is an amenable number.

538309860 is an abundant number, since it is smaller than the sum of its proper divisors (1105984092).

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

538309860 is a wasteful number, since it uses less digits than its factorization.

538309860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815644 (or 815642 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 538309860 is about 23201.5055545971. The cubic root of 538309860 is about 813.4748145139.

The spelling of 538309860 in words is "five hundred thirty-eight million, three hundred nine thousand, eight hundred sixty".