842314781 has 8 divisors (see below), whose sum is σ = 1050158784. Its totient is φ = 656349120.

The previous prime is 842314757. The next prime is 842314787. The reversal of 842314781 is 187413248.

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

It is not a de Polignac number, because 842314781 - 2¹⁸ = 842052637 is a prime.

It is a super-2 number, since 2×842314781² = 1418988380582155922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842314787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5469500 + ... + 5469653.

It is an arithmetic number, because the mean of its divisors is an integer number (131269848).

Almost surely, 2^842314781 is an apocalyptic number.

It is an amenable number.

842314781 is a deficient number, since it is larger than the sum of its proper divisors (207844003).

842314781 is a wasteful number, since it uses less digits than its factorization.

842314781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10939171.

The product of its digits is 43008, while the sum is 38.

The square root of 842314781 is about 29022.6597850714. The cubic root of 842314781 is about 944.4047018258.

The spelling of 842314781 in words is "eight hundred forty-two million, three hundred fourteen thousand, seven hundred eighty-one".