849245280 has 432 divisors, whose sum is σ = 3162635280. Its totient is φ = 191213568.

The previous prime is 849245263. The next prime is 849245311. The reversal of 849245280 is 82542948.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 29284306 + ... + 29284334.

It is an arithmetic number, because the mean of its divisors is an integer number (7320915).

Almost surely, 2^849245280 is an apocalyptic number.

849245280 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 849245280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1581317640).

849245280 is an abundant number, since it is smaller than the sum of its proper divisors (2313390000).

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

849245280 is a wasteful number, since it uses less digits than its factorization.

849245280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 71 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 849245280 is about 29141.8132586152. The cubic root of 849245280 is about 946.9877924867.

The spelling of 849245280 in words is "eight hundred forty-nine million, two hundred forty-five thousand, two hundred eighty".