849444240 has 160 divisors (see below), whose sum is σ = 2699827200. Its totient is φ = 220864000.

The previous prime is 849444223. The next prime is 849444259. The reversal of 849444240 is 42444948.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3384115 + ... + 3384365.

It is an arithmetic number, because the mean of its divisors is an integer number (16873920).

Almost surely, 2^849444240 is an apocalyptic number.

849444240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 849444240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1349913600).

849444240 is an abundant number, since it is smaller than the sum of its proper divisors (1850382960).

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

849444240 is a wasteful number, since it uses less digits than its factorization.

849444240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565 (or 559 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 39.

The square root of 849444240 is about 29145.2267103895. The cubic root of 849444240 is about 947.0617397054.

The spelling of 849444240 in words is "eight hundred forty-nine million, four hundred forty-four thousand, two hundred forty".