1068040738 has 4 divisors (see below), whose sum is σ = 1602061110. Its totient is φ = 534020368.

The previous prime is 1068040733. The next prime is 1068040741. The reversal of 1068040738 is 8370408601.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8370408601 = 137 ⋅61097873.

It can be written as a sum of positive squares in only one way, i.e., 960566049 + 107474689 = 30993^2 + 10367^2 .

It is a super-2 number, since 2×1068040738² = 2281422036055169288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1068040697 and 1068040706.

It is not an unprimeable number, because it can be changed into a prime (1068040733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267010183 + ... + 267010186.

Almost surely, 2^1068040738 is an apocalyptic number.

1068040738 is a deficient number, since it is larger than the sum of its proper divisors (534020372).

1068040738 is an equidigital number, since it uses as much as digits as its factorization.

1068040738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534020371.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 1068040738 is about 32680.8925520709. The cubic root of 1068040738 is about 1022.1844565277.

The spelling of 1068040738 in words is "one billion, sixty-eight million, forty thousand, seven hundred thirty-eight".