842081941 has 4 divisors (see below), whose sum is σ = 843502572. Its totient is φ = 840661312.

The previous prime is 842081921. The next prime is 842081951. The reversal of 842081941 is 149180248.

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 328878225 + 513203716 = 18135^2 + 22654^2 .

It is a cyclic number.

It is not a de Polignac number, because 842081941 - 2⁵ = 842081909 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 842081941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842081921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 709426 + ... + 710611.

It is an arithmetic number, because the mean of its divisors is an integer number (210875643).

Almost surely, 2^842081941 is an apocalyptic number.

It is an amenable number.

842081941 is a deficient number, since it is larger than the sum of its proper divisors (1420631).

842081941 is a wasteful number, since it uses less digits than its factorization.

842081941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1420630.

The product of its (nonzero) digits is 18432, while the sum is 37.

The square root of 842081941 is about 29018.6481594164. The cubic root of 842081941 is about 944.3176736107.

The spelling of 842081941 in words is "eight hundred forty-two million, eighty-one thousand, nine hundred forty-one".