842029 has 4 divisors (see below), whose sum is σ = 851580. Its totient is φ = 832480.

The previous prime is 842021. The next prime is 842041. The reversal of 842029 is 920248.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 393129 + 448900 = 627^2 + 670^2 .

It is a cyclic number.

It is not a de Polignac number, because 842029 - 2³ = 842021 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 841994 and 842012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842021) 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 3 ways as a sum of consecutive naturals, for example, 4642 + ... + 4819.

It is an arithmetic number, because the mean of its divisors is an integer number (212895).

2⁸⁴²⁰²⁹ is an apocalyptic number.

842029 is a gapful number since it is divisible by the number (89) formed by its first and last digit.

It is an amenable number.

842029 is a deficient number, since it is larger than the sum of its proper divisors (9551).

842029 is an equidigital number, since it uses as much as digits as its factorization.

842029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9550.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 842029 is about 917.6213816166. The cubic root of 842029 is about 94.4297883704.

The spelling of 842029 in words is "eight hundred forty-two thousand, twenty-nine".