493489820 has 24 divisors (see below), whose sum is σ = 1038819600. Its totient is φ = 196921472.

The previous prime is 493489819. The next prime is 493489847. The reversal of 493489820 is 28984394.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21065 + ... + 37824.

It is an arithmetic number, because the mean of its divisors is an integer number (43284150).

Almost surely, 2^493489820 is an apocalyptic number.

It is an amenable number.

493489820 is an abundant number, since it is smaller than the sum of its proper divisors (545329780).

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

493489820 is a wasteful number, since it uses less digits than its factorization.

493489820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59317 (or 59315 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 47.

The square root of 493489820 is about 22214.6307644309. The cubic root of 493489820 is about 790.2407107111.

The spelling of 493489820 in words is "four hundred ninety-three million, four hundred eighty-nine thousand, eight hundred twenty".