404424444 has 24 divisors (see below), whose sum is σ = 952317520. Its totient is φ = 133570944.

The previous prime is 404424437. The next prime is 404424491. The reversal of 404424444 is 444424404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153289 + ... + 155904.

Almost surely, 2^404424444 is an apocalyptic number.

It is an amenable number.

404424444 is an abundant number, since it is smaller than the sum of its proper divisors (547893076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

404424444 is a wasteful number, since it uses less digits than its factorization.

404424444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309309 (or 309307 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 30.

The square root of 404424444 is about 20110.3069096421. The cubic root of 404424444 is about 739.5129763509.

Adding to 404424444 its reverse (444424404), we get a palindrome (848848848).

The spelling of 404424444 in words is "four hundred four million, four hundred twenty-four thousand, four hundred forty-four".