538207830 has 48 divisors (see below), whose sum is σ = 1418526720. Its totient is φ = 141554304.

The previous prime is 538207807. The next prime is 538207837. The reversal of 538207830 is 38702835.

538207830 is a `hidden beast` number, since 538 + 20 + 78 + 30 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538207837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34390 + ... + 47529.

It is an arithmetic number, because the mean of its divisors is an integer number (29552640).

Almost surely, 2^538207830 is an apocalyptic number.

538207830 is an abundant number, since it is smaller than the sum of its proper divisors (880318890).

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

538207830 is a wasteful number, since it uses less digits than its factorization.

538207830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82005 (or 82002 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 538207830 is about 23199.3066706744. The cubic root of 538207830 is about 813.4234165578.

The spelling of 538207830 in words is "five hundred thirty-eight million, two hundred seven thousand, eight hundred thirty".