494281690 has 16 divisors (see below), whose sum is σ = 1016808192. Its totient is φ = 169467984.

The previous prime is 494281651. The next prime is 494281717. The reversal of 494281690 is 96182494.

It is a super-2 number, since 2×494281690² = 488628778138512200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3530514 + ... + 3530653.

It is an arithmetic number, because the mean of its divisors is an integer number (63550512).

Almost surely, 2^494281690 is an apocalyptic number.

494281690 is an abundant number, since it is smaller than the sum of its proper divisors (522526502).

494281690 is a wasteful number, since it uses less digits than its factorization.

494281690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7061181.

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 494281690 is about 22232.4467839237. The cubic root of 494281690 is about 790.6631669098.

The spelling of 494281690 in words is "four hundred ninety-four million, two hundred eighty-one thousand, six hundred ninety".