200891982 has 48 divisors (see below), whose sum is σ = 423642240. Its totient is φ = 63500976.

The previous prime is 200891969. The next prime is 200891987. The reversal of 200891982 is 289198002.

It is a self number, because there is not a number n which added to its sum of digits gives 200891982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200891987) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 529869 + ... + 530247.

It is an arithmetic number, because the mean of its divisors is an integer number (8825880).

Almost surely, 2^200891982 is an apocalyptic number.

200891982 is an abundant number, since it is smaller than the sum of its proper divisors (222750258).

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

200891982 is a wasteful number, since it uses less digits than its factorization.

200891982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597 (or 574 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 200891982 is about 14173.6368656742. The cubic root of 200891982 is about 585.6716487645.

The spelling of 200891982 in words is "two hundred million, eight hundred ninety-one thousand, nine hundred eighty-two".