842349321 has 32 divisors (see below), whose sum is σ = 1377815040. Its totient is φ = 504349200.

The previous prime is 842349301. The next prime is 842349323. The reversal of 842349321 is 123943248.

It is not a de Polignac number, because 842349321 - 2⁹ = 842348809 is a prime.

It is a super-2 number, since 2×842349321² = 1419104757178322082, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (842349323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7566 + ... + 41736.

It is an arithmetic number, because the mean of its divisors is an integer number (43056720).

Almost surely, 2^842349321 is an apocalyptic number.

It is an amenable number.

842349321 is a deficient number, since it is larger than the sum of its proper divisors (535465719).

842349321 is a wasteful number, since it uses less digits than its factorization.

842349321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34274 (or 34268 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 842349321 is about 29023.2548312556. The cubic root of 842349321 is about 944.4176104174.

The spelling of 842349321 in words is "eight hundred forty-two million, three hundred forty-nine thousand, three hundred twenty-one".