404424424406 has 16 divisors (see below), whose sum is σ = 608314419600. Its totient is φ = 201653087328.

The previous prime is 404424424373. The next prime is 404424424409. The reversal of 404424424406 is 604424424404.

It is a super-2 number, since 2×404424424406² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 404424424406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404424424409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6875336 + ... + 6933908.

It is an arithmetic number, because the mean of its divisors is an integer number (38019651225).

Almost surely, 2^404424424406 is an apocalyptic number.

404424424406 is a deficient number, since it is larger than the sum of its proper divisors (203889995194).

404424424406 is a wasteful number, since it uses less digits than its factorization.

404424424406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68063.

The product of its (nonzero) digits is 393216, while the sum is 38.

The spelling of 404424424406 in words is "four hundred four billion, four hundred twenty-four million, four hundred twenty-four thousand, four hundred six".