40243134533 has 8 divisors (see below), whose sum is σ = 46678604352. Its totient is φ = 33979277376.

The previous prime is 40243134517. The next prime is 40243134541. The reversal of 40243134533 is 33543134204.

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

It is a cyclic number.

It is not a de Polignac number, because 40243134533 - 2⁴ = 40243134517 is a prime.

It is a super-2 number, since 2×40243134533² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40243134533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40243134563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42902660 + ... + 42903597.

It is an arithmetic number, because the mean of its divisors is an integer number (5834825544).

Almost surely, 2^40243134533 is an apocalyptic number.

It is an amenable number.

40243134533 is a deficient number, since it is larger than the sum of its proper divisors (6435469819).

40243134533 is an equidigital number, since it uses as much as digits as its factorization.

40243134533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85806331.

The product of its (nonzero) digits is 51840, while the sum is 32.

Adding to 40243134533 its reverse (33543134204), we get a palindrome (73786268737).

The spelling of 40243134533 in words is "forty billion, two hundred forty-three million, one hundred thirty-four thousand, five hundred thirty-three".