1720493768 has 16 divisors (see below), whose sum is σ = 3686772480. Its totient is φ = 737354448.

The previous prime is 1720493741. The next prime is 1720493773. The reversal of 1720493768 is 8673940271.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15361496 + ... + 15361607.

It is an arithmetic number, because the mean of its divisors is an integer number (230423280).

Almost surely, 2^1720493768 is an apocalyptic number.

It is an amenable number.

1720493768 is an abundant number, since it is smaller than the sum of its proper divisors (1966278712).

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

1720493768 is a wasteful number, since it uses less digits than its factorization.

1720493768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30723116 (or 30723112 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 47.

The square root of 1720493768 is about 41478.8351813307. The cubic root of 1720493768 is about 1198.2599242964.

The spelling of 1720493768 in words is "one billion, seven hundred twenty million, four hundred ninety-three thousand, seven hundred sixty-eight".