842820860 has 48 divisors (see below), whose sum is σ = 2024580096. Its totient is φ = 288708672.

The previous prime is 842820827. The next prime is 842820863. The reversal of 842820860 is 68028248.

It is a super-2 number, since 2×842820860² = 1420694004102279200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842820863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219719 + ... + 223521.

It is an arithmetic number, because the mean of its divisors is an integer number (42178752).

Almost surely, 2^842820860 is an apocalyptic number.

It is an amenable number.

842820860 is an abundant number, since it is smaller than the sum of its proper divisors (1181759236).

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

842820860 is a wasteful number, since it uses less digits than its factorization.

842820860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5402 (or 5400 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 38.

The square root of 842820860 is about 29031.3771633383. The cubic root of 842820860 is about 944.5938028248.

The spelling of 842820860 in words is "eight hundred forty-two million, eight hundred twenty thousand, eight hundred sixty".