40340005133 has 4 divisors (see below), whose sum is σ = 41430275580. Its totient is φ = 39249734688.

The previous prime is 40340005129. The next prime is 40340005151. The reversal of 40340005133 is 33150004304.

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 33108713764 + 7231291369 = 181958^2 + 85037^2 .

It is a cyclic number.

It is not a de Polignac number, because 40340005133 - 2² = 40340005129 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40340005099 and 40340005108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40340005333) 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, 545135168 + ... + 545135241.

It is an arithmetic number, because the mean of its divisors is an integer number (10357568895).

Almost surely, 2^40340005133 is an apocalyptic number.

It is an amenable number.

40340005133 is a deficient number, since it is larger than the sum of its proper divisors (1090270447).

40340005133 is a wasteful number, since it uses less digits than its factorization.

40340005133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090270446.

The product of its (nonzero) digits is 2160, while the sum is 23.

Adding to 40340005133 its reverse (33150004304), we get a palindrome (73490009437).

The spelling of 40340005133 in words is "forty billion, three hundred forty million, five thousand, one hundred thirty-three".