494136718 has 4 divisors (see below), whose sum is σ = 741205080. Its totient is φ = 247068358.

The previous prime is 494136707. The next prime is 494136737. The reversal of 494136718 is 817631494.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 817631494 = 2 ⋅408815747.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123534178 + ... + 123534181.

It is an arithmetic number, because the mean of its divisors is an integer number (185301270).

Almost surely, 2^494136718 is an apocalyptic number.

494136718 is a deficient number, since it is larger than the sum of its proper divisors (247068362).

494136718 is a wasteful number, since it uses less digits than its factorization.

494136718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247068361.

The product of its digits is 145152, while the sum is 43.

The square root of 494136718 is about 22229.1861749368. The cubic root of 494136718 is about 790.5858592860.

The spelling of 494136718 in words is "four hundred ninety-four million, one hundred thirty-six thousand, seven hundred eighteen".