68040044 has 12 divisors (see below), whose sum is σ = 119409864. Its totient is φ = 33922944.

The previous prime is 68040043. The next prime is 68040047. The reversal of 68040044 is 44004086.

It is a junction number, because it is equal to n+sod(n) for n = 68039995 and 68040022.

It is not an unprimeable number, because it can be changed into a prime (68040043) 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, 22682 + ... + 25505.

It is an arithmetic number, because the mean of its divisors is an integer number (9950822).

Almost surely, 2^68040044 is an apocalyptic number.

It is an amenable number.

68040044 is a deficient number, since it is larger than the sum of its proper divisors (51369820).

68040044 is a wasteful number, since it uses less digits than its factorization.

68040044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48544 (or 48542 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 68040044 is about 8248.6389180276. The cubic root of 68040044 is about 408.2456149584.

The spelling of 68040044 in words is "sixty-eight million, forty thousand, forty-four".