404444030 has 32 divisors (see below), whose sum is σ = 743041728. Its totient is φ = 158457600.

The previous prime is 404444021. The next prime is 404444041. The reversal of 404444030 is 30444404.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 404443987 and 404444005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159170 + ... + 161690.

It is an arithmetic number, because the mean of its divisors is an integer number (23220054).

Almost surely, 2^404444030 is an apocalyptic number.

404444030 is a deficient number, since it is larger than the sum of its proper divisors (338597698).

404444030 is a wasteful number, since it uses less digits than its factorization.

404444030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2852.

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 404444030 is about 20110.7938679705. The cubic root of 404444030 is about 739.5249141945.

Adding to 404444030 its reverse (30444404), we get a palindrome (434888434).

The spelling of 404444030 in words is "four hundred four million, four hundred forty-four thousand, thirty".