24400004004 has 24 divisors (see below), whose sum is σ = 63259269920. Its totient is φ = 8133334632.

The previous prime is 24400003961. The next prime is 24400004033. The reversal of 24400004004 is 40040000442.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 7 ways as a sum of consecutive naturals, for example, 112962874 + ... + 112963089.

Almost surely, 2^24400004004 is an apocalyptic number.

It is an amenable number.

24400004004 is an abundant number, since it is smaller than the sum of its proper divisors (38859265916).

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

24400004004 is a wasteful number, since it uses less digits than its factorization.

24400004004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225925976 (or 225925968 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 24400004004 its reverse (40040000442), we get a palindrome (64440004446).

The spelling of 24400004004 in words is "twenty-four billion, four hundred million, four thousand, four".