494920008 has 72 divisors (see below), whose sum is σ = 1473367350. Its totient is φ = 149973120.

The previous prime is 494920007. The next prime is 494920051. The reversal of 494920008 is 800029494.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 494706564 + 213444 = 22242^2 + 462^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (494920001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 19693 + ... + 37116.

Almost surely, 2^494920008 is an apocalyptic number.

It is an amenable number.

494920008 is an abundant number, since it is smaller than the sum of its proper divisors (978447342).

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

494920008 is a wasteful number, since it uses less digits than its factorization.

494920008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56843 (or 56825 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 494920008 is about 22246.7977021413. The cubic root of 494920008 is about 791.0033760404.

The spelling of 494920008 in words is "four hundred ninety-four million, nine hundred twenty thousand, eight".