1068940368 has 80 divisors (see below), whose sum is σ = 3098760000. Its totient is φ = 352771200.

The previous prime is 1068940351. The next prime is 1068940381. The reversal of 1068940368 is 8630498601.

1068940368 is a `hidden beast` number, since 106 + 89 + 403 + 68 = 666.

It is a super-2 number, since 2×1068940368² = 2285267020679950848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31383 + ... + 55881.

It is an arithmetic number, because the mean of its divisors is an integer number (38734500).

Almost surely, 2^1068940368 is an apocalyptic number.

1068940368 is a gapful number since it is divisible by the number (18) 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 1068940368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1549380000).

1068940368 is an abundant number, since it is smaller than the sum of its proper divisors (2029819632).

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

1068940368 is a wasteful number, since it uses less digits than its factorization.

1068940368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24617 (or 24605 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 1068940368 is about 32694.6535078750. The cubic root of 1068940368 is about 1022.4713774585.

The spelling of 1068940368 in words is "one billion, sixty-eight million, nine hundred forty thousand, three hundred sixty-eight".