40442423023 has 16 divisors (see below), whose sum is σ = 41377340160. Its totient is φ = 39516450496.

The previous prime is 40442423009. The next prime is 40442423029. The reversal of 40442423023 is 32032424404.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 40442423023 - 2⁹ = 40442422511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40442422982 and 40442423000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40442423029) 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, 8892036 + ... + 8896582.

It is an arithmetic number, because the mean of its divisors is an integer number (2586083760).

Almost surely, 2^40442423023 is an apocalyptic number.

40442423023 is a deficient number, since it is larger than the sum of its proper divisors (934917137).

40442423023 is a wasteful number, since it uses less digits than its factorization.

40442423023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5486.

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

Adding to 40442423023 its reverse (32032424404), we get a palindrome (72474847427).

The spelling of 40442423023 in words is "forty billion, four hundred forty-two million, four hundred twenty-three thousand, twenty-three".