440065995 has 32 divisors (see below), whose sum is σ = 746998848. Its totient is φ = 220459008.

The previous prime is 440065993. The next prime is 440066009. The reversal of 440065995 is 599560044.

It is a happy number.

It is not a de Polignac number, because 440065995 - 2¹ = 440065993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (440065993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 155937 + ... + 158733.

It is an arithmetic number, because the mean of its divisors is an integer number (23343714).

Almost surely, 2^440065995 is an apocalyptic number.

440065995 is a deficient number, since it is larger than the sum of its proper divisors (306932853).

440065995 is a wasteful number, since it uses less digits than its factorization.

440065995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3439.

The product of its (nonzero) digits is 194400, while the sum is 42.

The square root of 440065995 is about 20977.7499985103. The cubic root of 440065995 is about 760.6285168948.

The spelling of 440065995 in words is "four hundred forty million, sixty-five thousand, nine hundred ninety-five".