440340068 has 18 divisors (see below), whose sum is σ = 896406966. Its totient is φ = 188717088.

The previous prime is 440340023. The next prime is 440340091. The reversal of 440340068 is 860043044.

It can be written as a sum of positive squares in only one way, i.e., 413796964 + 26543104 = 20342^2 + 5152^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 440340068.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1123121 + ... + 1123512.

It is an arithmetic number, because the mean of its divisors is an integer number (49800387).

Almost surely, 2^440340068 is an apocalyptic number.

It is an amenable number.

440340068 is an abundant number, since it is smaller than the sum of its proper divisors (456066898).

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

440340068 is a wasteful number, since it uses less digits than its factorization.

440340068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2246651 (or 2246642 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 440340068 is about 20984.2814506478. The cubic root of 440340068 is about 760.7863905463.

The spelling of 440340068 in words is "four hundred forty million, three hundred forty thousand, sixty-eight".