849089400 has 96 divisors (see below), whose sum is σ = 2636616960. Its totient is φ = 226042240.

The previous prime is 849089387. The next prime is 849089447. The reversal of 849089400 is 4980948.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 661159 + ... + 662441.

It is an arithmetic number, because the mean of its divisors is an integer number (27464760).

Almost surely, 2^849089400 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 849089400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1318308480).

849089400 is an abundant number, since it is smaller than the sum of its proper divisors (1787527560).

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

849089400 is a wasteful number, since it uses less digits than its factorization.

849089400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2405 (or 2396 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 849089400 is about 29139.1386283123. The cubic root of 849089400 is about 946.9298486891.

The spelling of 849089400 in words is "eight hundred forty-nine million, eighty-nine thousand, four hundred".