849381400 has 96 divisors (see below), whose sum is σ = 2329850880. Its totient is φ = 281808000.

The previous prime is 849381367. The next prime is 849381409. The reversal of 849381400 is 4183948.

It is a self number, because there is not a number n which added to its sum of digits gives 849381400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (849381409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33615 + ... + 53185.

It is an arithmetic number, because the mean of its divisors is an integer number (24269280).

Almost surely, 2^849381400 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 849381400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1164925440).

849381400 is an abundant number, since it is smaller than the sum of its proper divisors (1480469480).

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

849381400 is a wasteful number, since it uses less digits than its factorization.

849381400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19625 (or 19616 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 849381400 is about 29144.1486408507. The cubic root of 849381400 is about 947.0383852875.

The spelling of 849381400 in words is "eight hundred forty-nine million, three hundred eighty-one thousand, four hundred".