40124344443 has 4 divisors (see below), whose sum is σ = 53499125928. Its totient is φ = 26749562960.

The previous prime is 40124344409. The next prime is 40124344453. The reversal of 40124344443 is 34444342104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40124344443 - 2¹⁰ = 40124343419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40124344453) 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, 6687390738 + ... + 6687390743.

It is an arithmetic number, because the mean of its divisors is an integer number (13374781482).

Almost surely, 2^40124344443 is an apocalyptic number.

40124344443 is a deficient number, since it is larger than the sum of its proper divisors (13374781485).

40124344443 is a wasteful number, since it uses less digits than its factorization.

40124344443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13374781484.

The product of its (nonzero) digits is 73728, while the sum is 33.

Adding to 40124344443 its reverse (34444342104), we get a palindrome (74568686547).

The spelling of 40124344443 in words is "forty billion, one hundred twenty-four million, three hundred forty-four thousand, four hundred forty-three".