43320240442 has 8 divisors (see below), whose sum is σ = 65086366356. Its totient is φ = 21624784992.

The previous prime is 43320240413. The next prime is 43320240487. The reversal of 43320240442 is 24404202334.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 43305193801 + 15046641 = 208099^2 + 3879^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 43320240442.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17666083 + ... + 17668534.

Almost surely, 2^43320240442 is an apocalyptic number.

43320240442 is a deficient number, since it is larger than the sum of its proper divisors (21766125914).

43320240442 is a wasteful number, since it uses less digits than its factorization.

43320240442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35335232.

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 43320240442 its reverse (24404202334), we get a palindrome (67724442776).

The spelling of 43320240442 in words is "forty-three billion, three hundred twenty million, two hundred forty thousand, four hundred forty-two".