40023340515443 has 4 divisors (see below), whose sum is σ = 40023364798968. Its totient is φ = 40023316231920.

The previous prime is 40023340515437. The next prime is 40023340515491. The reversal of 40023340515443 is 34451504332004.

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 40023340515443 - 2²⁸ = 40023072079987 is a prime.

It is a super-2 number, since 2×40023340515443² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40023340515397 and 40023340515406.

It is not an unprimeable number, because it can be changed into a prime (40023340515493) 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, 9474146 + ... + 13030967.

It is an arithmetic number, because the mean of its divisors is an integer number (10005841199742).

Almost surely, 2^{40023340515443} is an apocalyptic number.

40023340515443 is a deficient number, since it is larger than the sum of its proper divisors (24283525).

40023340515443 is a wasteful number, since it uses less digits than its factorization.

40023340515443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24283524.

The product of its (nonzero) digits is 345600, while the sum is 38.

Adding to 40023340515443 its reverse (34451504332004), we get a palindrome (74474844847447).

The spelling of 40023340515443 in words is "forty trillion, twenty-three billion, three hundred forty million, five hundred fifteen thousand, four hundred forty-three".