842156441 has 8 divisors (see below), whose sum is σ = 985939584. Its totient is φ = 704242080.

The previous prime is 842156411. The next prime is 842156449. The reversal of 842156441 is 144651248.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 842156441 - 2⁶ = 842156377 is a prime.

It is a super-2 number, since 2×842156441² = 1418454942235572962, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (842156449) 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 7 ways as a sum of consecutive naturals, for example, 1466885 + ... + 1467458.

It is an arithmetic number, because the mean of its divisors is an integer number (123242448).

Almost surely, 2^842156441 is an apocalyptic number.

It is an amenable number.

842156441 is a deficient number, since it is larger than the sum of its proper divisors (143783143).

842156441 is a wasteful number, since it uses less digits than its factorization.

842156441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2934391.

The product of its digits is 30720, while the sum is 35.

The square root of 842156441 is about 29019.9317883416. The cubic root of 842156441 is about 944.3455210955.

The spelling of 842156441 in words is "eight hundred forty-two million, one hundred fifty-six thousand, four hundred forty-one".