845831394 has 48 divisors (see below), whose sum is σ = 1958995584. Its totient is φ = 263102400.

The previous prime is 845831381. The next prime is 845831401. The reversal of 845831394 is 493138548.

845831394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7942 + ... + 41889.

It is an arithmetic number, because the mean of its divisors is an integer number (40812408).

Almost surely, 2^845831394 is an apocalyptic number.

845831394 is an abundant number, since it is smaller than the sum of its proper divisors (1113164190).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

845831394 is a wasteful number, since it uses less digits than its factorization.

845831394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49903 (or 49900 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 845831394 is about 29083.1806032284. The cubic root of 845831394 is about 945.7171544510.

The spelling of 845831394 in words is "eight hundred forty-five million, eight hundred thirty-one thousand, three hundred ninety-four".