494605986 has 32 divisors (see below), whose sum is σ = 1190031360. Its totient is φ = 133878096.

The previous prime is 494605981. The next prime is 494605997. The reversal of 494605986 is 689506494.

It is not an unprimeable number, because it can be changed into a prime (494605981) 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, 309106 + ... + 310701.

It is an arithmetic number, because the mean of its divisors is an integer number (37188480).

Almost surely, 2^494605986 is an apocalyptic number.

494605986 is an abundant number, since it is smaller than the sum of its proper divisors (695425374).

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

494605986 is a wasteful number, since it uses less digits than its factorization.

494605986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619838.

The product of its (nonzero) digits is 1866240, while the sum is 51.

The square root of 494605986 is about 22239.7388923521. The cubic root of 494605986 is about 790.8360459595.

The spelling of 494605986 in words is "four hundred ninety-four million, six hundred five thousand, nine hundred eighty-six".