40022444423 has 4 divisors (see below), whose sum is σ = 43101094008. Its totient is φ = 36943794840.

The previous prime is 40022444377. The next prime is 40022444491. The reversal of 40022444423 is 32444422004.

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 40022444423 - 2¹⁰ = 40022443399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40022443423) 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, 1539324773 + ... + 1539324798.

It is an arithmetic number, because the mean of its divisors is an integer number (10775273502).

Almost surely, 2^40022444423 is an apocalyptic number.

40022444423 is a deficient number, since it is larger than the sum of its proper divisors (3078649585).

40022444423 is a wasteful number, since it uses less digits than its factorization.

40022444423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3078649584.

The product of its (nonzero) digits is 24576, while the sum is 29.

Adding to 40022444423 its reverse (32444422004), we get a palindrome (72466866427).

The spelling of 40022444423 in words is "forty billion, twenty-two million, four hundred forty-four thousand, four hundred twenty-three".