841273042 has 4 divisors (see below), whose sum is σ = 1261909566. Its totient is φ = 420636520.

The previous prime is 841273031. The next prime is 841273057. The reversal of 841273042 is 240372148.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 819734161 + 21538881 = 28631^2 + 4641^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 841272995 and 841273013.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210318259 + ... + 210318262.

Almost surely, 2^841273042 is an apocalyptic number.

841273042 is a deficient number, since it is larger than the sum of its proper divisors (420636524).

841273042 is a wasteful number, since it uses less digits than its factorization.

841273042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420636523.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 841273042 is about 29004.7072386535. The cubic root of 841273042 is about 944.0152080584.

The spelling of 841273042 in words is "eight hundred forty-one million, two hundred seventy-three thousand, forty-two".