444987841 has 4 divisors (see below), whose sum is σ = 453383892. Its totient is φ = 436591792.

The previous prime is 444987839. The next prime is 444987871. The reversal of 444987841 is 148789444.

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 371371441 + 73616400 = 19271^2 + 8580^2 .

It is a cyclic number.

It is not a de Polignac number, because 444987841 - 2¹ = 444987839 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (444987821) 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, 4197946 + ... + 4198051.

It is an arithmetic number, because the mean of its divisors is an integer number (113345973).

Almost surely, 2^444987841 is an apocalyptic number.

It is an amenable number.

444987841 is a deficient number, since it is larger than the sum of its proper divisors (8396051).

444987841 is an equidigital number, since it uses as much as digits as its factorization.

444987841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8396050.

The product of its digits is 1032192, while the sum is 49.

The square root of 444987841 is about 21094.7349118210. The cubic root of 444987841 is about 763.4537185890.

The spelling of 444987841 in words is "four hundred forty-four million, nine hundred eighty-seven thousand, eight hundred forty-one".