4000040023 has 8 divisors (see below), whose sum is σ = 4572581760. Its totient is φ = 3427775160.

The previous prime is 4000039997. The next prime is 4000040027. The reversal of 4000040023 is 3200400004.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4000040023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4000039985 and 4000040012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4000040027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37273 + ... + 96898.

It is an arithmetic number, because the mean of its divisors is an integer number (571572720).

Almost surely, 2^4000040023 is an apocalyptic number.

4000040023 is a deficient number, since it is larger than the sum of its proper divisors (572541737).

4000040023 is a wasteful number, since it uses less digits than its factorization.

4000040023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138437.

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 4000040023 is about 63245.8696121731. The cubic root of 4000040023 is about 1587.4063463299.

Adding to 4000040023 its reverse (3200400004), we get a palindrome (7200440027).

The spelling of 4000040023 in words is "four billion, forty thousand, twenty-three".