849399156 has 48 divisors (see below), whose sum is σ = 2213729280. Its totient is φ = 281643840.

The previous prime is 849399149. The next prime is 849399209. The reversal of 849399156 is 651993948.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 40 + ... + 41216.

It is an arithmetic number, because the mean of its divisors is an integer number (46119360).

Almost surely, 2^849399156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 849399156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1106864640).

849399156 is an abundant number, since it is smaller than the sum of its proper divisors (1364330124).

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

849399156 is a wasteful number, since it uses less digits than its factorization.

849399156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41381 (or 41373 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 54.

The square root of 849399156 is about 29144.4532630139. The cubic root of 849399156 is about 947.0449844024.

The spelling of 849399156 in words is "eight hundred forty-nine million, three hundred ninety-nine thousand, one hundred fifty-six".