201683430 has 96 divisors (see below), whose sum is σ = 567979776. Its totient is φ = 49358592.

The previous prime is 201683401. The next prime is 201683437. The reversal of 201683430 is 34386102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 201683394 and 201683403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201683437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 260524 + ... + 261296.

It is an arithmetic number, because the mean of its divisors is an integer number (5916456).

Almost surely, 2^201683430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201683430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283989888).

201683430 is an abundant number, since it is smaller than the sum of its proper divisors (366296346).

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

201683430 is a wasteful number, since it uses less digits than its factorization.

201683430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022 (or 1019 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 201683430 is about 14201.5291430184. The cubic root of 201683430 is about 586.4397585098.

The spelling of 201683430 in words is "two hundred one million, six hundred eighty-three thousand, four hundred thirty".