849449472 has 80 divisors (see below), whose sum is σ = 2396176992. Its totient is φ = 266485760.

The previous prime is 849449449. The next prime is 849449479. The reversal of 849449472 is 274944948.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (849449479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9847 + ... + 42377.

Almost surely, 2^849449472 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 849449472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1198088496).

849449472 is an abundant number, since it is smaller than the sum of its proper divisors (1546727520).

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

849449472 is a wasteful number, since it uses less digits than its factorization.

849449472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32569 (or 32553 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 51.

The square root of 849449472 is about 29145.3164676591. The cubic root of 849449472 is about 947.0636841206.

The spelling of 849449472 in words is "eight hundred forty-nine million, four hundred forty-nine thousand, four hundred seventy-two".