213864750 has 96 divisors (see below), whose sum is σ = 630935136. Its totient is φ = 51840000.

The previous prime is 213864661. The next prime is 213864751. The reversal of 213864750 is 57468312.

213864750 is a `hidden beast` number, since 2 + 1 + 3 + 8 + 647 + 5 + 0 = 666.

213864750 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213864751) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20430 + ... + 29070.

It is an arithmetic number, because the mean of its divisors is an integer number (6572241).

Almost surely, 2^213864750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213864750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (315467568).

213864750 is an abundant number, since it is smaller than the sum of its proper divisors (417070386).

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

213864750 is a wasteful number, since it uses less digits than its factorization.

213864750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8675 (or 8662 counting only the distinct ones).

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

The square root of 213864750 is about 14624.1153578601. The cubic root of 213864750 is about 598.0163658866.

The spelling of 213864750 in words is "two hundred thirteen million, eight hundred sixty-four thousand, seven hundred fifty".