440342785 has 4 divisors (see below), whose sum is σ = 528411348. Its totient is φ = 352274224.

The previous prime is 440342737. The next prime is 440342801. The reversal of 440342785 is 587243044.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 100641024 + 339701761 = 10032^2 + 18431^2 .

It is a cyclic number.

It is not a de Polignac number, because 440342785 - 2⁷ = 440342657 is a prime.

It is a Duffinian number.

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, 44034274 + ... + 44034283.

It is an arithmetic number, because the mean of its divisors is an integer number (132102837).

Almost surely, 2^440342785 is an apocalyptic number.

It is an amenable number.

440342785 is a deficient number, since it is larger than the sum of its proper divisors (88068563).

440342785 is an equidigital number, since it uses as much as digits as its factorization.

440342785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88068562.

The product of its (nonzero) digits is 107520, while the sum is 37.

The square root of 440342785 is about 20984.3461894813. The cubic root of 440342785 is about 760.7879552857.

The spelling of 440342785 in words is "four hundred forty million, three hundred forty-two thousand, seven hundred eighty-five".