440427305 has 4 divisors (see below), whose sum is σ = 528512772. Its totient is φ = 352341840.

The previous prime is 440427283. The next prime is 440427311. The reversal of 440427305 is 503724044.

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 188348176 + 252079129 = 13724^2 + 15877^2 .

It is a de Polignac number, because none of the positive numbers 2^k-440427305 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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44042726 + ... + 44042735.

It is an arithmetic number, because the mean of its divisors is an integer number (132128193).

Almost surely, 2^440427305 is an apocalyptic number.

It is an amenable number.

440427305 is a deficient number, since it is larger than the sum of its proper divisors (88085467).

440427305 is an equidigital number, since it uses as much as digits as its factorization.

440427305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88085466.

The product of its (nonzero) digits is 13440, while the sum is 29.

The square root of 440427305 is about 20986.3599749933. The cubic root of 440427305 is about 760.8366277341.

The spelling of 440427305 in words is "four hundred forty million, four hundred twenty-seven thousand, three hundred five".