68042444 has 12 divisors (see below), whose sum is σ = 119456904. Its totient is φ = 33911904.

The previous prime is 68042431. The next prime is 68042459. The reversal of 68042444 is 44424086.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 68042444.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 25922 + ... + 28425.

It is an arithmetic number, because the mean of its divisors is an integer number (9954742).

Almost surely, 2^68042444 is an apocalyptic number.

It is an amenable number.

68042444 is a deficient number, since it is larger than the sum of its proper divisors (51414460).

68042444 is a wasteful number, since it uses less digits than its factorization.

68042444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54664 (or 54662 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

The square root of 68042444 is about 8248.7843952912. The cubic root of 68042444 is about 408.2504149649.

It can be divided in two parts, 68042 and 444, that added together give a palindrome (68486).

The spelling of 68042444 in words is "sixty-eight million, forty-two thousand, four hundred forty-four".