494395218 has 32 divisors (see below), whose sum is σ = 1099897920. Its totient is φ = 164612160.

The previous prime is 494395217. The next prime is 494395229. The reversal of 494395218 is 812593494.

494395218 is a `hidden beast` number, since 4 + 94 + 39 + 521 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (494395217) 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, 48073 + ... + 57443.

It is an arithmetic number, because the mean of its divisors is an integer number (34371810).

Almost surely, 2^494395218 is an apocalyptic number.

494395218 is an abundant number, since it is smaller than the sum of its proper divisors (605502702).

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

494395218 is a wasteful number, since it uses less digits than its factorization.

494395218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10359 (or 10353 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 494395218 is about 22234.9998425905. Note that the first 3 decimals coincide. The cubic root of 494395218 is about 790.7236961845.

The spelling of 494395218 in words is "four hundred ninety-four million, three hundred ninety-five thousand, two hundred eighteen".