494485440 has 56 divisors (see below), whose sum is σ = 1569994320. Its totient is φ = 131862528.

The previous prime is 494485421. The next prime is 494485451. The reversal of 494485440 is 44584494.

It is a junction number, because it is equal to n+sod(n) for n = 494485392 and 494485401.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 256585 + ... + 258504.

Almost surely, 2^494485440 is an apocalyptic number.

494485440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

494485440 is an abundant number, since it is smaller than the sum of its proper divisors (1075508880).

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

494485440 is a wasteful number, since it uses less digits than its factorization.

494485440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515109 (or 515099 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 42.

The square root of 494485440 is about 22237.0285784769. The cubic root of 494485440 is about 790.7717928836.

The spelling of 494485440 in words is "four hundred ninety-four million, four hundred eighty-five thousand, four hundred forty".