601968138 has 16 divisors (see below), whose sum is σ = 1245451680. Its totient is φ = 193736816.

The previous prime is 601968083. The next prime is 601968139. The reversal of 601968138 is 831869106.

It is a self number, because there is not a number n which added to its sum of digits gives 601968138.

It is not an unprimeable number, because it can be changed into a prime (601968139) 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 in 7 ways as a sum of consecutive naturals, for example, 1729620 + ... + 1729967.

It is an arithmetic number, because the mean of its divisors is an integer number (77840730).

Almost surely, 2^601968138 is an apocalyptic number.

601968138 is an abundant number, since it is smaller than the sum of its proper divisors (643483542).

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

601968138 is a wasteful number, since it uses less digits than its factorization.

601968138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3459621.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 601968138 is about 24535.0389850923. The cubic root of 601968138 is about 844.3538764838.

The spelling of 601968138 in words is "six hundred one million, nine hundred sixty-eight thousand, one hundred thirty-eight".