201401730 has 96 divisors (see below), whose sum is σ = 555429888. Its totient is φ = 50544000.

The previous prime is 201401719. The next prime is 201401743. The reversal of 201401730 is 37104102.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 102255 + ... + 104205.

It is an arithmetic number, because the mean of its divisors is an integer number (5785728).

Almost surely, 2^201401730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201401730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277714944).

201401730 is an abundant number, since it is smaller than the sum of its proper divisors (354028158).

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

201401730 is a wasteful number, since it uses less digits than its factorization.

201401730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2032 (or 2029 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 201401730 is about 14191.6077313319. The cubic root of 201401730 is about 586.1665960033.

Adding to 201401730 its reverse (37104102), we get a palindrome (238505832).

The spelling of 201401730 in words is "two hundred one million, four hundred one thousand, seven hundred thirty".