440352013 has 4 divisors (see below), whose sum is σ = 451092348. Its totient is φ = 429611680.

The previous prime is 440352007. The next prime is 440352019. The reversal of 440352013 is 310253044.

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

It is an interprime number because it is at equal distance from previous prime (440352007) and next prime (440352019).

It can be written as a sum of positive squares in 2 ways, for example, as 44262409 + 396089604 = 6653^2 + 19902^2 .

It is a cyclic number.

It is not a de Polignac number, because 440352013 - 2¹³ = 440343821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440352019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5370106 + ... + 5370187.

It is an arithmetic number, because the mean of its divisors is an integer number (112773087).

Almost surely, 2^440352013 is an apocalyptic number.

It is an amenable number.

440352013 is a deficient number, since it is larger than the sum of its proper divisors (10740335).

440352013 is a wasteful number, since it uses less digits than its factorization.

440352013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10740334.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 440352013 is about 20984.5660665166. The cubic root of 440352013 is about 760.7932697078.

The spelling of 440352013 in words is "four hundred forty million, three hundred fifty-two thousand, thirteen".