831022401 has 8 divisors (see below), whose sum is σ = 1208759904. Its totient is φ = 503649920.

The previous prime is 831022391. The next prime is 831022417. The reversal of 831022401 is 104220138.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 831022401 - 2⁷ = 831022273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (831022421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12591216 + ... + 12591281.

It is an arithmetic number, because the mean of its divisors is an integer number (151094988).

Almost surely, 2^831022401 is an apocalyptic number.

It is an amenable number.

831022401 is a deficient number, since it is larger than the sum of its proper divisors (377737503).

831022401 is a wasteful number, since it uses less digits than its factorization.

831022401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25182511.

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

The square root of 831022401 is about 28827.4591492209. The cubic root of 831022401 is about 940.1653553229.

Adding to 831022401 its reverse (104220138), we get a palindrome (935242539).

The spelling of 831022401 in words is "eight hundred thirty-one million, twenty-two thousand, four hundred one".