200215890 has 96 divisors (see below), whose sum is σ = 598291200. Its totient is φ = 45505152.

The previous prime is 200215871. The next prime is 200215903. The reversal of 200215890 is 98512002.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 124572 + ... + 126168.

It is an arithmetic number, because the mean of its divisors is an integer number (6232200).

Almost surely, 2^200215890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200215890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (299145600).

200215890 is an abundant number, since it is smaller than the sum of its proper divisors (398075310).

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

200215890 is a wasteful number, since it uses less digits than its factorization.

200215890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1816 (or 1813 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 200215890 is about 14149.7664291677. The cubic root of 200215890 is about 585.0138940377.

Adding to 200215890 its reverse (98512002), we get a palindrome (298727892).

The spelling of 200215890 in words is "two hundred million, two hundred fifteen thousand, eight hundred ninety".