851930044 has 24 divisors (see below), whose sum is σ = 1804088160. Its totient is φ = 343635456.

The previous prime is 851930029. The next prime is 851930083. The reversal of 851930044 is 440039158.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 851929991 and 851930009.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 894409 + ... + 895360.

It is an arithmetic number, because the mean of its divisors is an integer number (75170340).

Almost surely, 2^851930044 is an apocalyptic number.

It is an amenable number.

851930044 is an abundant number, since it is smaller than the sum of its proper divisors (952158116).

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

851930044 is a wasteful number, since it uses less digits than its factorization.

851930044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1789797 (or 1789795 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 851930044 is about 29187.8406875192. The cubic root of 851930044 is about 947.9846635938.

The spelling of 851930044 in words is "eight hundred fifty-one million, nine hundred thirty thousand, forty-four".