493843640 has 32 divisors (see below), whose sum is σ = 1146994560. Its totient is φ = 191164800.

The previous prime is 493843583. The next prime is 493843661. The reversal of 493843640 is 46348394.

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, 197891 + ... + 200370.

It is an arithmetic number, because the mean of its divisors is an integer number (35843580).

Almost surely, 2^493843640 is an apocalyptic number.

493843640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

493843640 is an abundant number, since it is smaller than the sum of its proper divisors (653150920).

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

493843640 is a wasteful number, since it uses less digits than its factorization.

493843640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398303 (or 398299 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 41.

The square root of 493843640 is about 22222.5930080178. The cubic root of 493843640 is about 790.4295266101.

The spelling of 493843640 in words is "four hundred ninety-three million, eight hundred forty-three thousand, six hundred forty".