431201330 has 32 divisors (see below), whose sum is σ = 911022336. Its totient is φ = 143843904.

The previous prime is 431201279. The next prime is 431201339. The reversal of 431201330 is 33102134.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 431201299 and 431201308.

It is not an unprimeable number, because it can be changed into a prime (431201339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80654 + ... + 85833.

It is an arithmetic number, because the mean of its divisors is an integer number (28469448).

Almost surely, 2^431201330 is an apocalyptic number.

431201330 is an abundant number, since it is smaller than the sum of its proper divisors (479821006).

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

431201330 is a wasteful number, since it uses less digits than its factorization.

431201330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166538.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 431201330 is about 20765.3877883366. The cubic root of 431201330 is about 755.4864809097.

Adding to 431201330 its reverse (33102134), we get a palindrome (464303464).

The spelling of 431201330 in words is "four hundred thirty-one million, two hundred one thousand, three hundred thirty".