441881901 has 12 divisors (see below), whose sum is σ = 675819612. Its totient is φ = 277259136.

The previous prime is 441881893. The next prime is 441881929. The reversal of 441881901 is 109188144.

It can be written as a sum of positive squares in 2 ways, for example, as 146385801 + 295496100 = 12099^2 + 17190^2 .

It is not a de Polignac number, because 441881901 - 2³ = 441881893 is a prime.

It is a super-2 number, since 2×441881901² = 390519228862747602, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (441881501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1443906 + ... + 1444211.

It is an arithmetic number, because the mean of its divisors is an integer number (56318301).

Almost surely, 2^441881901 is an apocalyptic number.

It is an amenable number.

441881901 is a deficient number, since it is larger than the sum of its proper divisors (233937711).

441881901 is a wasteful number, since it uses less digits than its factorization.

441881901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2888140 (or 2888137 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The square root of 441881901 is about 21020.9871556975. The cubic root of 441881901 is about 761.6733104732.

The spelling of 441881901 in words is "four hundred forty-one million, eight hundred eighty-one thousand, nine hundred one".