493030978 has 16 divisors (see below), whose sum is σ = 813921696. Its totient is φ = 222120640.

The previous prime is 493030973. The next prime is 493030999. The reversal of 493030978 is 879030394.

It is not an unprimeable number, because it can be changed into a prime (493030973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96676 + ... + 101647.

It is an arithmetic number, because the mean of its divisors is an integer number (50870106).

Almost surely, 2^493030978 is an apocalyptic number.

493030978 is a deficient number, since it is larger than the sum of its proper divisors (320890718).

493030978 is a wasteful number, since it uses less digits than its factorization.

493030978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198449.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 493030978 is about 22204.3008896925. The cubic root of 493030978 is about 789.9957154070.

The spelling of 493030978 in words is "four hundred ninety-three million, thirty thousand, nine hundred seventy-eight".