1068628345 has 4 divisors (see below), whose sum is σ = 1282354020. Its totient is φ = 854902672.

The previous prime is 1068628333. The next prime is 1068628349. The reversal of 1068628345 is 5438268601.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 784672144 + 283956201 = 28012^2 + 16851^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1068628345 is a prime.

It is a super-2 number, since 2×1068628345² = 2283933079474878050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1068628349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106862830 + ... + 106862839.

It is an arithmetic number, because the mean of its divisors is an integer number (320588505).

Almost surely, 2^1068628345 is an apocalyptic number.

It is an amenable number.

1068628345 is a deficient number, since it is larger than the sum of its proper divisors (213725675).

1068628345 is an equidigital number, since it uses as much as digits as its factorization.

1068628345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213725674.

The product of its (nonzero) digits is 276480, while the sum is 43.

The square root of 1068628345 is about 32689.8813855297. The cubic root of 1068628345 is about 1022.3718815330.

The spelling of 1068628345 in words is "one billion, sixty-eight million, six hundred twenty-eight thousand, three hundred forty-five".