441040013 has 4 divisors (see below), whose sum is σ = 442756380. Its totient is φ = 439323648.

The previous prime is 441040009. The next prime is 441040043. The reversal of 441040013 is 310040144.

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 439195849 + 1844164 = 20957^2 + 1358^2 .

It is a cyclic number.

It is not a de Polignac number, because 441040013 - 2² = 441040009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 441039973 and 441040000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (441040003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 857798 + ... + 858311.

It is an arithmetic number, because the mean of its divisors is an integer number (110689095).

Almost surely, 2^441040013 is an apocalyptic number.

It is an amenable number.

441040013 is a deficient number, since it is larger than the sum of its proper divisors (1716367).

441040013 is a wasteful number, since it uses less digits than its factorization.

441040013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1716366.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 441040013 is about 21000.9526688672. The cubic root of 441040013 is about 761.1892812264.

Adding to 441040013 its reverse (310040144), we get a palindrome (751080157).

The spelling of 441040013 in words is "four hundred forty-one million, forty thousand, thirteen".