200891320 has 64 divisors (see below), whose sum is σ = 520447680. Its totient is φ = 68361216.

The previous prime is 200891297. The next prime is 200891347. The reversal of 200891320 is 23198002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35742 + ... + 40978.

It is an arithmetic number, because the mean of its divisors is an integer number (8131995).

Almost surely, 2^200891320 is an apocalyptic number.

200891320 is a gapful number since it is divisible by the number (20) 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 200891320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260223840).

200891320 is an abundant number, since it is smaller than the sum of its proper divisors (319556360).

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

200891320 is a wasteful number, since it uses less digits than its factorization.

200891320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5392 (or 5388 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 200891320 is about 14173.6135124392. The cubic root of 200891320 is about 585.6710054419.

The spelling of 200891320 in words is "two hundred million, eight hundred ninety-one thousand, three hundred twenty".