400004000024 has 16 divisors (see below), whose sum is σ = 751065349200. Its totient is φ = 199719906912.

The previous prime is 400004000021. The next prime is 400004000029. The reversal of 400004000024 is 420000400004.

It is a junction number, because it is equal to n+sod(n) for n = 400003999972 and 400004000008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400004000021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35255612 + ... + 35266955.

It is an arithmetic number, because the mean of its divisors is an integer number (46941584325).

Almost surely, 2^400004000024 is an apocalyptic number.

It is an amenable number.

400004000024 is a deficient number, since it is larger than the sum of its proper divisors (351061349176).

400004000024 is a wasteful number, since it uses less digits than its factorization.

400004000024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70523282 (or 70523278 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

Adding to 400004000024 its reverse (420000400004), we get a palindrome (820004400028).

The spelling of 400004000024 in words is "four hundred billion, four million, twenty-four", and thus it is an aban number.