831201450 has 48 divisors (see below), whose sum is σ = 2127887616. Its totient is φ = 214502400.

The previous prime is 831201421. The next prime is 831201457. The reversal of 831201450 is 54102138.

It is a self number, because there is not a number n which added to its sum of digits gives 831201450.

It is not an unprimeable number, because it can be changed into a prime (831201457) 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, 84727 + ... + 94026.

It is an arithmetic number, because the mean of its divisors is an integer number (44330992).

Almost surely, 2^831201450 is an apocalyptic number.

831201450 is an abundant number, since it is smaller than the sum of its proper divisors (1296686166).

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

831201450 is a wasteful number, since it uses less digits than its factorization.

831201450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178799 (or 178794 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 831201450 is about 28830.5645106023. The cubic root of 831201450 is about 940.2328719860.

Adding to 831201450 its reverse (54102138), we get a palindrome (885303588).

The spelling of 831201450 in words is "eight hundred thirty-one million, two hundred one thousand, four hundred fifty".