404000040424 has 8 divisors (see below), whose sum is σ = 757500075810. Its totient is φ = 202000020208.

The previous prime is 404000040421. The next prime is 404000040511. The reversal of 404000040424 is 424040000404.

It can be written as a sum of positive squares in only one way, i.e., 392013732100 + 11986308324 = 626110^2 + 109482^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 404000040395 and 404000040404.

It is not an unprimeable number, because it can be changed into a prime (404000040421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25250002519 + ... + 25250002534.

Almost surely, 2^404000040424 is an apocalyptic number.

It is an amenable number.

404000040424 is a deficient number, since it is larger than the sum of its proper divisors (353500035386).

404000040424 is a wasteful number, since it uses less digits than its factorization.

404000040424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50500005059 (or 50500005055 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 404000040424 its reverse (424040000404), we get a palindrome (828040040828).

The spelling of 404000040424 in words is "four hundred four billion, forty thousand, four hundred twenty-four".