842509441 has 8 divisors (see below), whose sum is σ = 849260160. Its totient is φ = 835768848.

The previous prime is 842509433. The next prime is 842509453. The reversal of 842509441 is 144905248.

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 842509441 - 2³ = 842509433 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 842509441.

It is not an unprimeable number, because it can be changed into a prime (842509411) 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, 338895 + ... + 341371.

It is an arithmetic number, because the mean of its divisors is an integer number (106157520).

Almost surely, 2^842509441 is an apocalyptic number.

It is an amenable number.

842509441 is a deficient number, since it is larger than the sum of its proper divisors (6750719).

842509441 is a wasteful number, since it uses less digits than its factorization.

842509441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5063.

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 842509441 is about 29026.0131778376. The cubic root of 842509441 is about 944.4774472584.

The spelling of 842509441 in words is "eight hundred forty-two million, five hundred nine thousand, four hundred forty-one".