494542644 has 48 divisors (see below), whose sum is σ = 1167136320. Its totient is φ = 162973440.

The previous prime is 494542627. The next prime is 494542669. The reversal of 494542644 is 446245494.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 494542596 and 494542605.

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 15 ways as a sum of consecutive naturals, for example, 437472 + ... + 438600.

It is an arithmetic number, because the mean of its divisors is an integer number (24315340).

Almost surely, 2^494542644 is an apocalyptic number.

It is an amenable number.

494542644 is an abundant number, since it is smaller than the sum of its proper divisors (672593676).

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

494542644 is a wasteful number, since it uses less digits than its factorization.

494542644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1520 (or 1518 counting only the distinct ones).

The product of its digits is 552960, while the sum is 42.

The square root of 494542644 is about 22238.3147742809. The cubic root of 494542644 is about 790.8022848939.

The spelling of 494542644 in words is "four hundred ninety-four million, five hundred forty-two thousand, six hundred forty-four".