842834401 has 4 divisors (see below), whose sum is σ = 842941204. Its totient is φ = 842727600.

The previous prime is 842834393. The next prime is 842834431. The reversal of 842834401 is 104438248.

It is a happy number.

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 17766225 + 825068176 = 4215^2 + 28724^2 .

It is a cyclic number.

It is not a de Polignac number, because 842834401 - 2³ = 842834393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (842834431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40530 + ... + 57691.

It is an arithmetic number, because the mean of its divisors is an integer number (210735301).

Almost surely, 2^842834401 is an apocalyptic number.

It is an amenable number.

842834401 is a deficient number, since it is larger than the sum of its proper divisors (106803).

842834401 is an equidigital number, since it uses as much as digits as its factorization.

842834401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106802.

The product of its (nonzero) digits is 24576, while the sum is 34.

The square root of 842834401 is about 29031.6103755889. The cubic root of 842834401 is about 944.5988615021.

The spelling of 842834401 in words is "eight hundred forty-two million, eight hundred thirty-four thousand, four hundred one".