842317390 has 16 divisors (see below), whose sum is σ = 1516663440. Its totient is φ = 336817600.

The previous prime is 842317381. The next prime is 842317397. The reversal of 842317390 is 93713248.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842317397) 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, 23490 + ... + 47290.

It is an arithmetic number, because the mean of its divisors is an integer number (94791465).

Almost surely, 2^842317390 is an apocalyptic number.

842317390 is a deficient number, since it is larger than the sum of its proper divisors (674346050).

842317390 is a wasteful number, since it uses less digits than its factorization.

842317390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27347.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 842317390 is about 29022.7047326744. The cubic root of 842317390 is about 944.4056768965.

The spelling of 842317390 in words is "eight hundred forty-two million, three hundred seventeen thousand, three hundred ninety".