201430424 has 48 divisors (see below), whose sum is σ = 411091200. Its totient is φ = 92486784.

The previous prime is 201430409. The next prime is 201430429. The reversal of 201430424 is 424034102.

It is a junction number, because it is equal to n+sod(n) for n = 201430396 and 201430405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201430429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 517622 + ... + 518010.

It is an arithmetic number, because the mean of its divisors is an integer number (8564400).

Almost surely, 2^201430424 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 201430424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205545600).

201430424 is an abundant number, since it is smaller than the sum of its proper divisors (209660776).

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

201430424 is a wasteful number, since it uses less digits than its factorization.

201430424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804 (or 787 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 201430424 is about 14192.6186449154. The cubic root of 201430424 is about 586.1944320197.

Adding to 201430424 its reverse (424034102), we get a palindrome (625464526).

The spelling of 201430424 in words is "two hundred one million, four hundred thirty thousand, four hundred twenty-four".