538666850 has 48 divisors (see below), whose sum is σ = 1040933376. Its totient is φ = 207168000.

The previous prime is 538666841. The next prime is 538666861. The reversal of 538666850 is 58666835.

It is a junction number, because it is equal to n+sod(n) for n = 538666795 and 538666804.

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 23 ways as a sum of consecutive naturals, for example, 257810 + ... + 259890.

It is an arithmetic number, because the mean of its divisors is an integer number (21686112).

Almost surely, 2^538666850 is an apocalyptic number.

538666850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

538666850 is a deficient number, since it is larger than the sum of its proper divisors (502266526).

538666850 is a wasteful number, since it uses less digits than its factorization.

538666850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2291 (or 2286 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 47.

The square root of 538666850 is about 23209.1975302896. The cubic root of 538666850 is about 813.6545983299.

The spelling of 538666850 in words is "five hundred thirty-eight million, six hundred sixty-six thousand, eight hundred fifty".