404024400404 has 24 divisors (see below), whose sum is σ = 732925482240. Its totient is φ = 194645729376.

The previous prime is 404024400401. The next prime is 404024400407. The reversal of 404024400404 is 404004420404.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (404024400401) and next prime (404024400407).

It is a super-2 number, since 2×404024400404² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404024400401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3519452 + ... + 3632435.

It is an arithmetic number, because the mean of its divisors is an integer number (30538561760).

Almost surely, 2^404024400404 is an apocalyptic number.

It is an amenable number.

404024400404 is a deficient number, since it is larger than the sum of its proper divisors (328901081836).

404024400404 is a wasteful number, since it uses less digits than its factorization.

404024400404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7152407 (or 7152405 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 404024400404 its reverse (404004420404), we get a palindrome (808028820808).

The spelling of 404024400404 in words is "four hundred four billion, twenty-four million, four hundred thousand, four hundred four".