849630018 has 16 divisors (see below), whose sum is σ = 1699593120. Its totient is φ = 283154496.

The previous prime is 849630017. The next prime is 849630043. The reversal of 849630018 is 810036948.

It is not an unprimeable number, because it can be changed into a prime (849630017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29913 + ... + 50931.

It is an arithmetic number, because the mean of its divisors is an integer number (106224570).

Almost surely, 2^849630018 is an apocalyptic number.

849630018 is an abundant number, since it is smaller than the sum of its proper divisors (849963102).

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

849630018 is a wasteful number, since it uses less digits than its factorization.

849630018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27761.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 849630018 is about 29148.4136446565. The cubic root of 849630018 is about 947.1307771625.

The spelling of 849630018 in words is "eight hundred forty-nine million, six hundred thirty thousand, eighteen".