40036508329 has 4 divisors (see below), whose sum is σ = 40037798484. Its totient is φ = 40035218176.

The previous prime is 40036508311. The next prime is 40036508371. The reversal of 40036508329 is 92380563004.

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 34582981225 + 5453527104 = 185965^2 + 73848^2 .

It is a cyclic number.

It is not a de Polignac number, because 40036508329 - 2²⁵ = 40002953897 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40036508291 and 40036508300.

It is not an unprimeable number, because it can be changed into a prime (40036508389) 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, 597352 + ... + 660985.

It is an arithmetic number, because the mean of its divisors is an integer number (10009449621).

Almost surely, 2^40036508329 is an apocalyptic number.

It is an amenable number.

40036508329 is a deficient number, since it is larger than the sum of its proper divisors (1290155).

40036508329 is a wasteful number, since it uses less digits than its factorization.

40036508329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290154.

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 40036508329 in words is "forty billion, thirty-six million, five hundred eight thousand, three hundred twenty-nine".