849239730 has 96 divisors (see below), whose sum is σ = 2308700160. Its totient is φ = 216328320.

The previous prime is 849239717. The next prime is 849239731. The reversal of 849239730 is 37932948.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (849239731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 218484 + ... + 222336.

It is an arithmetic number, because the mean of its divisors is an integer number (24048960).

Almost surely, 2^849239730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 849239730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1154350080).

849239730 is an abundant number, since it is smaller than the sum of its proper divisors (1459460430).

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

849239730 is a wasteful number, since it uses less digits than its factorization.

849239730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3976 (or 3973 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 849239730 is about 29141.7180344605. The cubic root of 849239730 is about 946.9857295595.

The spelling of 849239730 in words is "eight hundred forty-nine million, two hundred thirty-nine thousand, seven hundred thirty".