842062221 has 96 divisors (see below), whose sum is σ = 1646561280. Its totient is φ = 400464000.

The previous prime is 842062217. The next prime is 842062253. The reversal of 842062221 is 122260248.

It is a happy number.

It is not a de Polignac number, because 842062221 - 2² = 842062217 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842062211) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1360050 + ... + 1360668.

It is an arithmetic number, because the mean of its divisors is an integer number (17151680).

Almost surely, 2^842062221 is an apocalyptic number.

It is an amenable number.

842062221 is a deficient number, since it is larger than the sum of its proper divisors (804499059).

842062221 is a wasteful number, since it uses less digits than its factorization.

842062221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807 (or 804 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 842062221 is about 29018.3083759202. The cubic root of 842062221 is about 944.3103021627.

The spelling of 842062221 in words is "eight hundred forty-two million, sixty-two thousand, two hundred twenty-one".