842161620 has 24 divisors (see below), whose sum is σ = 2358052704. Its totient is φ = 224576416.

The previous prime is 842161613. The next prime is 842161667. The reversal of 842161620 is 26161248.

842161620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7017954 + ... + 7018073.

It is an arithmetic number, because the mean of its divisors is an integer number (98252196).

Almost surely, 2^842161620 is an apocalyptic number.

It is an amenable number.

842161620 is an abundant number, since it is smaller than the sum of its proper divisors (1515891084).

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

842161620 is a wasteful number, since it uses less digits than its factorization.

842161620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14036039 (or 14036037 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 842161620 is about 29020.0210199786. The cubic root of 842161620 is about 944.3474569019.

The spelling of 842161620 in words is "eight hundred forty-two million, one hundred sixty-one thousand, six hundred twenty".