538666700 has 144 divisors (see below), whose sum is σ = 1388244480. Its totient is φ = 178848000.

The previous prime is 538666699. The next prime is 538666703. The reversal of 538666700 is 7666835.

It is not an unprimeable number, because it can be changed into a prime (538666703) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 1987565 + ... + 1987835.

Almost surely, 2^538666700 is an apocalyptic number.

538666700 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 538666700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (694122240).

538666700 is an abundant number, since it is smaller than the sum of its proper divisors (849577780).

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

538666700 is a wasteful number, since it uses less digits than its factorization.

538666700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448 (or 441 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 538666700 is about 23209.1942988118. The cubic root of 538666700 is about 813.6545228050.

The spelling of 538666700 in words is "five hundred thirty-eight million, six hundred sixty-six thousand, seven hundred".