842890349 has 8 divisors (see below), whose sum is σ = 972841728. Its totient is φ = 715323600.

The previous prime is 842890337. The next prime is 842890381. The reversal of 842890349 is 943098248.

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 842890349 - 2²⁰ = 841841773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842890309) 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, 595397 + ... + 596810.

It is an arithmetic number, because the mean of its divisors is an integer number (121605216).

Almost surely, 2^842890349 is an apocalyptic number.

It is an amenable number.

842890349 is a deficient number, since it is larger than the sum of its proper divisors (129951379).

842890349 is a wasteful number, since it uses less digits than its factorization.

842890349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1192315.

The product of its (nonzero) digits is 497664, while the sum is 47.

The square root of 842890349 is about 29032.5739299842. The cubic root of 842890349 is about 944.6197621075.

The spelling of 842890349 in words is "eight hundred forty-two million, eight hundred ninety thousand, three hundred forty-nine".