201830412 has 72 divisors (see below), whose sum is σ = 562692144. Its totient is φ = 56101248.

The previous prime is 201830411. The next prime is 201830423. The reversal of 201830412 is 214038102.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (201830411) 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, 17118 + ... + 26394.

Almost surely, 2^201830412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201830412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281346072).

201830412 is an abundant number, since it is smaller than the sum of its proper divisors (360861732).

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

201830412 is a wasteful number, since it uses less digits than its factorization.

201830412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9335 (or 9326 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 201830412 is about 14206.7030658066. The cubic root of 201830412 is about 586.5821849481.

Adding to 201830412 its reverse (214038102), we get a palindrome (415868514).

The spelling of 201830412 in words is "two hundred one million, eight hundred thirty thousand, four hundred twelve".