40004240424 has 16 divisors (see below), whose sum is σ = 100010601120. Its totient is φ = 13334746800.

The previous prime is 40004240371. The next prime is 40004240461. The reversal of 40004240424 is 42404240004.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 1666843351 = 40004240424 / (4 + 0 + 0 + 0 + 4 + 2 + 4 + 0 + 4 + 2 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 40004240394 and 40004240403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 833421652 + ... + 833421699.

It is an arithmetic number, because the mean of its divisors is an integer number (6250662570).

Almost surely, 2^40004240424 is an apocalyptic number.

It is an amenable number.

40004240424 is an abundant number, since it is smaller than the sum of its proper divisors (60006360696).

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

40004240424 is a wasteful number, since it uses less digits than its factorization.

40004240424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666843360 (or 1666843356 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 40004240424 its reverse (42404240004), we get a palindrome (82408480428).

It can be divided in two parts, 4000 and 4240424, that added together give a palindrome (4244424).

The spelling of 40004240424 in words is "forty billion, four million, two hundred forty thousand, four hundred twenty-four".