440350013 has 8 divisors (see below), whose sum is σ = 443393496. Its totient is φ = 437313600.

The previous prime is 440349991. The next prime is 440350049. The reversal of 440350013 is 310053044.

It can be written as a sum of positive squares in 4 ways, for example, as 273529 + 440076484 = 523^2 + 20978^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 440350013 - 2¹⁴ = 440333629 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 (440350073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190895 + ... + 193187.

It is an arithmetic number, because the mean of its divisors is an integer number (55424187).

Almost surely, 2^440350013 is an apocalyptic number.

It is an amenable number.

440350013 is a deficient number, since it is larger than the sum of its proper divisors (3043483).

440350013 is a wasteful number, since it uses less digits than its factorization.

440350013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3535.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 440350013 is about 20984.5184123916. The cubic root of 440350013 is about 760.7921179104.

The spelling of 440350013 in words is "four hundred forty million, three hundred fifty thousand, thirteen".