849912380 has 24 divisors (see below), whose sum is σ = 1797849648. Its totient is φ = 337482368.

The previous prime is 849912359. The next prime is 849912383. The reversal of 849912380 is 83219948.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (849912383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152354 + ... + 157833.

It is an arithmetic number, because the mean of its divisors is an integer number (74910402).

Almost surely, 2^849912380 is an apocalyptic number.

It is an amenable number.

849912380 is an abundant number, since it is smaller than the sum of its proper divisors (947937268).

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

849912380 is a wasteful number, since it uses less digits than its factorization.

849912380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310333 (or 310331 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 849912380 is about 29153.2567648968. The cubic root of 849912380 is about 947.2356871879.

The spelling of 849912380 in words is "eight hundred forty-nine million, nine hundred twelve thousand, three hundred eighty".