40023542329 has 4 divisors (see below), whose sum is σ = 40026721140. Its totient is φ = 40020363520.

The previous prime is 40023542327. The next prime is 40023542359. The reversal of 40023542329 is 92324532004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9730836025 + 30292706304 = 98645^2 + 174048^2 .

It is a cyclic number.

It is not a de Polignac number, because 40023542329 - 2¹ = 40023542327 is a prime.

It is a super-2 number, since 2×40023542329² (a number of 22 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 = 40023542294 and 40023542303.

It is not an unprimeable number, because it can be changed into a prime (40023542327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1570444 + ... + 1595725.

It is an arithmetic number, because the mean of its divisors is an integer number (10006680285).

Almost surely, 2^40023542329 is an apocalyptic number.

It is an amenable number.

40023542329 is a deficient number, since it is larger than the sum of its proper divisors (3178811).

40023542329 is a wasteful number, since it uses less digits than its factorization.

40023542329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3178810.

The product of its (nonzero) digits is 51840, while the sum is 34.

The spelling of 40023542329 in words is "forty billion, twenty-three million, five hundred forty-two thousand, three hundred twenty-nine".