404444111 has 8 divisors (see below), whose sum is σ = 414592464. Its totient is φ = 394329600.

The previous prime is 404444041. The next prime is 404444123. The reversal of 404444111 is 111444404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404444111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404444141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16661 + ... + 32961.

It is an arithmetic number, because the mean of its divisors is an integer number (51824058).

Almost surely, 2^404444111 is an apocalyptic number.

404444111 is a deficient number, since it is larger than the sum of its proper divisors (10148353).

404444111 is a wasteful number, since it uses less digits than its factorization.

404444111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16921.

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 404444111 is about 20110.7958818143. The cubic root of 404444111 is about 739.5249635639.

Adding to 404444111 its reverse (111444404), we get a palindrome (515888515).

The spelling of 404444111 in words is "four hundred four million, four hundred forty-four thousand, one hundred eleven".