40243584438 has 24 divisors (see below), whose sum is σ = 88495845048. Its totient is φ = 13214310912.

The previous prime is 40243584401. The next prime is 40243584463. The reversal of 40243584438 is 83448534204.

It is a happy number.

40243584438 is a `hidden beast` number, since 4 + 0 + 24 + 3 + 584 + 43 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 40243584393 and 40243584402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16683531 + ... + 16685942.

It is an arithmetic number, because the mean of its divisors is an integer number (3687326877).

Almost surely, 2^40243584438 is an apocalyptic number.

40243584438 is an abundant number, since it is smaller than the sum of its proper divisors (48252260610).

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

40243584438 is a wasteful number, since it uses less digits than its factorization.

40243584438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33369548 (or 33369545 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 45.

The spelling of 40243584438 in words is "forty billion, two hundred forty-three million, five hundred eighty-four thousand, four hundred thirty-eight".