444473811 has 20 divisors (see below), whose sum is σ = 666468000. Its totient is φ = 295199856.

The previous prime is 444473803. The next prime is 444473819. The reversal of 444473811 is 118374444.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (444473803) and next prime (444473819).

It is not a de Polignac number, because 444473811 - 2³ = 444473803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (444473819) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 11590 + ... + 31988.

It is an arithmetic number, because the mean of its divisors is an integer number (33323400).

Almost surely, 2^444473811 is an apocalyptic number.

444473811 is a deficient number, since it is larger than the sum of its proper divisors (221994189).

444473811 is a wasteful number, since it uses less digits than its factorization.

444473811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20680 (or 20671 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 444473811 is about 21082.5475453039. The cubic root of 444473811 is about 763.1596361559.

The spelling of 444473811 in words is "four hundred forty-four million, four hundred seventy-three thousand, eight hundred eleven".