849955520 has 112 divisors (see below), whose sum is σ = 2134867968. Its totient is φ = 321838080.

The previous prime is 849955493. The next prime is 849955523. The reversal of 849955520 is 25559948.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is not an unprimeable number, because it can be changed into a prime (849955523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 465329 + ... + 467151.

Almost surely, 2^849955520 is an apocalyptic number.

849955520 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 849955520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1067433984).

849955520 is an abundant number, since it is smaller than the sum of its proper divisors (1284912448).

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

849955520 is a wasteful number, since it uses less digits than its factorization.

849955520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1918 (or 1908 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 47.

The square root of 849955520 is about 29153.9966385400. The cubic root of 849955520 is about 947.2517135678.

The spelling of 849955520 in words is "eight hundred forty-nine million, nine hundred fifty-five thousand, five hundred twenty".