43040242504 has 96 divisors (see below), whose sum is σ = 94705114680. Its totient is φ = 18283539456.

The previous prime is 43040242477. The next prime is 43040242561. The reversal of 43040242504 is 40524204034.

It can be written as a sum of positive squares in 4 ways, for example, as 42025820004 + 1014422500 = 205002^2 + 31850^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

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 23 ways as a sum of consecutive naturals, for example, 41664772 + ... + 41665804.

Almost surely, 2^43040242504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43040242504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47352557340).

43040242504 is an abundant number, since it is smaller than the sum of its proper divisors (51664872176).

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

43040242504 is a wasteful number, since it uses less digits than its factorization.

43040242504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1887 (or 1876 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 28.

Adding to 43040242504 its reverse (40524204034), we get a palindrome (83564446538).

The spelling of 43040242504 in words is "forty-three billion, forty million, two hundred forty-two thousand, five hundred four".