1068402138 has 16 divisors (see below), whose sum is σ = 2137500576. Its totient is φ = 356018000.

The previous prime is 1068402109. The next prime is 1068402217. The reversal of 1068402138 is 8312048601.

It is a super-2 number, since 2×1068402138² = 2282966256965942088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1068402099 and 1068402108.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7881 + ... + 46892.

It is an arithmetic number, because the mean of its divisors is an integer number (133593786).

Almost surely, 2^1068402138 is an apocalyptic number.

1068402138 is an abundant number, since it is smaller than the sum of its proper divisors (1069098438).

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

1068402138 is a wasteful number, since it uses less digits than its factorization.

1068402138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58029.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 1068402138 is about 32686.4213091614. The cubic root of 1068402138 is about 1022.2997379615.

The spelling of 1068402138 in words is "one billion, sixty-eight million, four hundred two thousand, one hundred thirty-eight".