440848813 has 2 divisors, whose sum is σ = 440848814. Its totient is φ = 440848812.

The previous prime is 440848783. The next prime is 440848829. The reversal of 440848813 is 318848044.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 282139209 + 158709604 = 16797^2 + 12598^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-440848813 is a prime.

It is a super-3 number, since 3×440848813³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (440848853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220424406 + 220424407.

It is an arithmetic number, because the mean of its divisors is an integer number (220424407).

Almost surely, 2^440848813 is an apocalyptic number.

It is an amenable number.

440848813 is a deficient number, since it is larger than the sum of its proper divisors (1).

440848813 is an equidigital number, since it uses as much as digits as its factorization.

440848813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 98304, while the sum is 40.

The square root of 440848813 is about 20996.4000009525. The cubic root of 440848813 is about 761.0792682096.

The spelling of 440848813 in words is "four hundred forty million, eight hundred forty-eight thousand, eight hundred thirteen".