494557928 has 8 divisors (see below), whose sum is σ = 927296130. Its totient is φ = 247278960.

The previous prime is 494557871. The next prime is 494557951. The reversal of 494557928 is 829755494.

It can be written as a sum of positive squares in only one way, i.e., 403126084 + 91431844 = 20078^2 + 9562^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 494557928.

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 as a sum of consecutive naturals, namely, 30909863 + ... + 30909878.

Almost surely, 2^494557928 is an apocalyptic number.

It is an amenable number.

494557928 is a deficient number, since it is larger than the sum of its proper divisors (432738202).

494557928 is a wasteful number, since it uses less digits than its factorization.

494557928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61819747 (or 61819743 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 53.

The square root of 494557928 is about 22238.6584127730. The cubic root of 494557928 is about 790.8104314766.

The spelling of 494557928 in words is "four hundred ninety-four million, five hundred fifty-seven thousand, nine hundred twenty-eight".