404424056 has 8 divisors (see below), whose sum is σ = 758295120. Its totient is φ = 202212024.

The previous prime is 404424043. The next prime is 404424061. The reversal of 404424056 is 650424404.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×404424056² = 327117634142982272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25276496 + ... + 25276511.

It is an arithmetic number, because the mean of its divisors is an integer number (94786890).

Almost surely, 2^404424056 is an apocalyptic number.

It is an amenable number.

404424056 is a deficient number, since it is larger than the sum of its proper divisors (353871064).

404424056 is a wasteful number, since it uses less digits than its factorization.

404424056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50553013 (or 50553009 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

The square root of 404424056 is about 20110.2972628452. The cubic root of 404424056 is about 739.5127398575.

The spelling of 404424056 in words is "four hundred four million, four hundred twenty-four thousand, fifty-six".