851889204 has 48 divisors (see below), whose sum is σ = 2210208000. Its totient is φ = 283756608.

The previous prime is 851889197. The next prime is 851889251. The reversal of 851889204 is 402988158.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 851889204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 245272 + ... + 248720.

It is an arithmetic number, because the mean of its divisors is an integer number (46046000).

Almost surely, 2^851889204 is an apocalyptic number.

It is an amenable number.

851889204 is an abundant number, since it is smaller than the sum of its proper divisors (1358318796).

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

851889204 is a wasteful number, since it uses less digits than its factorization.

851889204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5749 (or 5741 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The square root of 851889204 is about 29187.1410727395. The cubic root of 851889204 is about 947.9695151229.

The spelling of 851889204 in words is "eight hundred fifty-one million, eight hundred eighty-nine thousand, two hundred four".