851846140 has 12 divisors (see below), whose sum is σ = 1788876936. Its totient is φ = 340738448.

The previous prime is 851846137. The next prime is 851846159. The reversal of 851846140 is 41648158.

It is a self number, because there is not a number n which added to its sum of digits gives 851846140.

It is a congruent number.

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, 21296134 + ... + 21296173.

It is an arithmetic number, because the mean of its divisors is an integer number (149073078).

Almost surely, 2^851846140 is an apocalyptic number.

It is an amenable number.

851846140 is an abundant number, since it is smaller than the sum of its proper divisors (937030796).

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

851846140 is a wasteful number, since it uses less digits than its factorization.

851846140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42592316 (or 42592314 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 851846140 is about 29186.4033412820. The cubic root of 851846140 is about 947.9535411962.

The spelling of 851846140 in words is "eight hundred fifty-one million, eight hundred forty-six thousand, one hundred forty".