404044443 has 80 divisors (see below), whose sum is σ = 717868800. Its totient is φ = 223715520.

The previous prime is 404044429. The next prime is 404044499. The reversal of 404044443 is 344440404.

It is not a de Polignac number, because 404044443 - 2⁵ = 404044411 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (404044943) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 490530 + ... + 491352.

It is an arithmetic number, because the mean of its divisors is an integer number (8973360).

Almost surely, 2^404044443 is an apocalyptic number.

404044443 is a deficient number, since it is larger than the sum of its proper divisors (313824357).

404044443 is a wasteful number, since it uses less digits than its factorization.

404044443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894 (or 885 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 27.

The square root of 404044443 is about 20100.8567727846. The cubic root of 404044443 is about 739.2812859938.

Adding to 404044443 its reverse (344440404), we get a palindrome (748484847).

The spelling of 404044443 in words is "four hundred four million, forty-four thousand, four hundred forty-three".