494275978 has 16 divisors (see below), whose sum is σ = 855106560. Its totient is φ = 209888496.

The previous prime is 494275973. The next prime is 494275979. The reversal of 494275978 is 879572494.

It is not an unprimeable number, because it can be changed into a prime (494275973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160426 + ... + 163477.

It is an arithmetic number, because the mean of its divisors is an integer number (53444160).

Almost surely, 2^494275978 is an apocalyptic number.

494275978 is a deficient number, since it is larger than the sum of its proper divisors (360830582).

494275978 is a wasteful number, since it uses less digits than its factorization.

494275978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324021.

The product of its digits is 5080320, while the sum is 55.

The square root of 494275978 is about 22232.3183226581. The cubic root of 494275978 is about 790.6601212205.

The spelling of 494275978 in words is "four hundred ninety-four million, two hundred seventy-five thousand, nine hundred seventy-eight".