851228092 has 48 divisors (see below), whose sum is σ = 1787369472. Its totient is φ = 349548480.

The previous prime is 851228089. The next prime is 851228093. The reversal of 851228092 is 290822158.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (851228093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11053 + ... + 42715.

It is an arithmetic number, because the mean of its divisors is an integer number (37236864).

Almost surely, 2^851228092 is an apocalyptic number.

It is an amenable number.

851228092 is an abundant number, since it is smaller than the sum of its proper divisors (936141380).

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

851228092 is a wasteful number, since it uses less digits than its factorization.

851228092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31738 (or 31736 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 851228092 is about 29175.8134762340. The cubic root of 851228092 is about 947.7242264905.

The spelling of 851228092 in words is "eight hundred fifty-one million, two hundred twenty-eight thousand, ninety-two".