494178320 has 20 divisors (see below), whose sum is σ = 1148964780. Its totient is φ = 197671296.

The previous prime is 494178313. The next prime is 494178331. The reversal of 494178320 is 23871494.

It can be written as a sum of positive squares in 2 ways, for example, as 305830144 + 188348176 = 17488^2 + 13724^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3088535 + ... + 3088694.

It is an arithmetic number, because the mean of its divisors is an integer number (57448239).

Almost surely, 2^494178320 is an apocalyptic number.

494178320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

494178320 is an abundant number, since it is smaller than the sum of its proper divisors (654786460).

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

494178320 is a wasteful number, since it uses less digits than its factorization.

494178320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6177242 (or 6177236 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 494178320 is about 22230.1219069982. The cubic root of 494178320 is about 790.6080454737.

The spelling of 494178320 in words is "four hundred ninety-four million, one hundred seventy-eight thousand, three hundred twenty".