1068409680 has 160 divisors (see below), whose sum is σ = 3579520896. Its totient is φ = 262060032.

The previous prime is 1068409679. The next prime is 1068409703. The reversal of 1068409680 is 869048601.

It is a super-2 number, since 2×1068409680² = 2282998488635404800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

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 31 ways as a sum of consecutive naturals, for example, 1381774 + ... + 1382546.

Almost surely, 2^1068409680 is an apocalyptic number.

1068409680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1068409680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1789760448).

1068409680 is an abundant number, since it is smaller than the sum of its proper divisors (2511111216).

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

1068409680 is a wasteful number, since it uses less digits than its factorization.

1068409680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245 (or 1239 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 1068409680 is about 32686.5366779657. The cubic root of 1068409680 is about 1022.3021434747.

The spelling of 1068409680 in words is "one billion, sixty-eight million, four hundred nine thousand, six hundred eighty".