440372065 has 12 divisors (see below), whose sum is σ = 614723796. Its totient is φ = 301969248.

The previous prime is 440372011. The next prime is 440372069. The reversal of 440372065 is 560273044.

It can be written as a sum of positive squares in 2 ways, for example, as 235653201 + 204718864 = 15351^2 + 14308^2 .

It is not a de Polignac number, because 440372065 - 2⁷ = 440371937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (440372069) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 898474 + ... + 898963.

It is an arithmetic number, because the mean of its divisors is an integer number (51226983).

Almost surely, 2^440372065 is an apocalyptic number.

It is an amenable number.

440372065 is a deficient number, since it is larger than the sum of its proper divisors (174351731).

440372065 is a wasteful number, since it uses less digits than its factorization.

440372065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1797456 (or 1797449 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 440372065 is about 20985.0438407929. The cubic root of 440372065 is about 760.8048174352.

The spelling of 440372065 in words is "four hundred forty million, three hundred seventy-two thousand, sixty-five".