829891142 has 32 divisors (see below), whose sum is σ = 1392297984. Its totient is φ = 369129600.

The previous prime is 829891141. The next prime is 829891147. The reversal of 829891142 is 241198928.

It is a junction number, because it is equal to n+sod(n) for n = 829891093 and 829891102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (829891141) 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, 36167 + ... + 54477.

It is an arithmetic number, because the mean of its divisors is an integer number (43509312).

Almost surely, 2^829891142 is an apocalyptic number.

829891142 is a deficient number, since it is larger than the sum of its proper divisors (562406842).

829891142 is a wasteful number, since it uses less digits than its factorization.

829891142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18404.

The product of its digits is 82944, while the sum is 44.

The square root of 829891142 is about 28807.8312616552. The cubic root of 829891142 is about 939.7385503449.

The spelling of 829891142 in words is "eight hundred twenty-nine million, eight hundred ninety-one thousand, one hundred forty-two".