494255979 has 16 divisors (see below), whose sum is σ = 836835840. Its totient is φ = 282431880.

The previous prime is 494255969. The next prime is 494255981. The reversal of 494255979 is 979552494.

494255979 is a `hidden beast` number, since 4 + 9 + 42 + 5 + 597 + 9 = 666.

It is not a de Polignac number, because 494255979 - 2⁴ = 494255963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (494255929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1307367 + ... + 1307744.

It is an arithmetic number, because the mean of its divisors is an integer number (52302240).

Almost surely, 2^494255979 is an apocalyptic number.

494255979 is a deficient number, since it is larger than the sum of its proper divisors (342579861).

494255979 is a wasteful number, since it uses less digits than its factorization.

494255979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2615127 (or 2615121 counting only the distinct ones).

The product of its digits is 4082400, while the sum is 54.

The square root of 494255979 is about 22231.8685449514. The cubic root of 494255979 is about 790.6494573905.

The spelling of 494255979 in words is "four hundred ninety-four million, two hundred fifty-five thousand, nine hundred seventy-nine".