40223640443 has 16 divisors (see below), whose sum is σ = 46435683840. Its totient is φ = 34128331776.

The previous prime is 40223640421. The next prime is 40223640463. The reversal of 40223640443 is 34404632204.

40223640443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40223640443 - 2¹⁰ = 40223639419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40223640463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1928396 + ... + 1949142.

It is an arithmetic number, because the mean of its divisors is an integer number (2902230240).

Almost surely, 2^40223640443 is an apocalyptic number.

40223640443 is a deficient number, since it is larger than the sum of its proper divisors (6212043397).

40223640443 is a wasteful number, since it uses less digits than its factorization.

40223640443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23546.

The product of its (nonzero) digits is 55296, while the sum is 32.

The spelling of 40223640443 in words is "forty billion, two hundred twenty-three million, six hundred forty thousand, four hundred forty-three".