201861330 has 64 divisors (see below), whose sum is σ = 532141056. Its totient is φ = 48600000.

The previous prime is 201861323. The next prime is 201861347. The reversal of 201861330 is 33168102.

It is a self number, because there is not a number n which added to its sum of digits gives 201861330.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47805 + ... + 51855.

It is an arithmetic number, because the mean of its divisors is an integer number (8314704).

Almost surely, 2^201861330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201861330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266070528).

201861330 is an abundant number, since it is smaller than the sum of its proper divisors (330279726).

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

201861330 is a wasteful number, since it uses less digits than its factorization.

201861330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4223.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 201861330 is about 14207.7911724518. The cubic root of 201861330 is about 586.6121358722.

The spelling of 201861330 in words is "two hundred one million, eight hundred sixty-one thousand, three hundred thirty".