404420040050 has 48 divisors (see below), whose sum is σ = 823814772480. Its totient is φ = 146793387840.

The previous prime is 404420040047. The next prime is 404420040071. The reversal of 404420040050 is 50040024404.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 404420039998 and 404420040025.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5234402 + ... + 5311101.

It is an arithmetic number, because the mean of its divisors is an integer number (17162807760).

Almost surely, 2^404420040050 is an apocalyptic number.

404420040050 is an abundant number, since it is smaller than the sum of its proper divisors (419394732430).

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

404420040050 is a wasteful number, since it uses less digits than its factorization.

404420040050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10545587 (or 10545582 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 23.

Adding to 404420040050 its reverse (50040024404), we get a palindrome (454460064454).

The spelling of 404420040050 in words is "four hundred four billion, four hundred twenty million, forty thousand, fifty".