846157640 has 16 divisors (see below), whose sum is σ = 1903854780. Its totient is φ = 338463040.

The previous prime is 846157633. The next prime is 846157681. The reversal of 846157640 is 46751648.

It can be written as a sum of positive squares in 2 ways, for example, as 798740644 + 47416996 = 28262^2 + 6886^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10576931 + ... + 10577010.

Almost surely, 2^846157640 is an apocalyptic number.

It is an amenable number.

846157640 is an abundant number, since it is smaller than the sum of its proper divisors (1057697140).

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

846157640 is a wasteful number, since it uses less digits than its factorization.

846157640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21153952 (or 21153948 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 846157640 is about 29088.7889056935. The cubic root of 846157640 is about 945.8387298150.

The spelling of 846157640 in words is "eight hundred forty-six million, one hundred fifty-seven thousand, six hundred forty".