1068358538 has 8 divisors (see below), whose sum is σ = 1725809988. Its totient is φ = 493088544.

The previous prime is 1068358537. The next prime is 1068358567. The reversal of 1068358538 is 8358538601.

It can be written as a sum of positive squares in 2 ways, for example, as 797328169 + 271030369 = 28237^2 + 16463^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1068358538² = 2282779931434994888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1068358492 and 1068358501.

It is not an unprimeable number, because it can be changed into a prime (1068358531) 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, 20545331 + ... + 20545382.

Almost surely, 2^1068358538 is an apocalyptic number.

1068358538 is a deficient number, since it is larger than the sum of its proper divisors (657451450).

1068358538 is a wasteful number, since it uses less digits than its factorization.

1068358538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41090728.

The product of its (nonzero) digits is 691200, while the sum is 47.

The square root of 1068358538 is about 32685.7543587417. The cubic root of 1068358538 is about 1022.2858315639.

The spelling of 1068358538 in words is "one billion, sixty-eight million, three hundred fifty-eight thousand, five hundred thirty-eight".