1968346728 has 48 divisors (see below), whose sum is σ = 5333964480. Its totient is φ = 655743264.

The previous prime is 1968346697. The next prime is 1968346763. The reversal of 1968346728 is 8276438691.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 139201 + ... + 152687.

It is an arithmetic number, because the mean of its divisors is an integer number (111124260).

Almost surely, 2^1968346728 is an apocalyptic number.

1968346728 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1968346728 is an abundant number, since it is smaller than the sum of its proper divisors (3365617752).

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

1968346728 is a wasteful number, since it uses less digits than its factorization.

1968346728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15526 (or 15519 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 1968346728 is about 44366.0537798890. The cubic root of 1968346728 is about 1253.2389023341.

The spelling of 1968346728 in words is "one billion, nine hundred sixty-eight million, three hundred forty-six thousand, seven hundred twenty-eight".