494478624 has 24 divisors (see below), whose sum is σ = 1298006640. Its totient is φ = 164826176.

The previous prime is 494478557. The next prime is 494478631. The reversal of 494478624 is 426874494.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2575314 + ... + 2575505.

It is an arithmetic number, because the mean of its divisors is an integer number (54083610).

Almost surely, 2^494478624 is an apocalyptic number.

It is an amenable number.

494478624 is an abundant number, since it is smaller than the sum of its proper divisors (803528016).

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

494478624 is a wasteful number, since it uses less digits than its factorization.

494478624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5150832 (or 5150824 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 48.

The square root of 494478624 is about 22236.8753200624. The cubic root of 494478624 is about 790.7681595274.

The spelling of 494478624 in words is "four hundred ninety-four million, four hundred seventy-eight thousand, six hundred twenty-four".