40609133 has 4 divisors (see below), whose sum is σ = 40628028. Its totient is φ = 40590240.

The previous prime is 40609087. The next prime is 40609159. The reversal of 40609133 is 33190604.

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 11847364 + 28761769 = 3442^2 + 5363^2 .

It is a cyclic number.

It is not a de Polignac number, because 40609133 - 2⁶ = 40609069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40609433) 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, 5738 + ... + 10683.

It is an arithmetic number, because the mean of its divisors is an integer number (10157007).

Almost surely, 2^40609133 is an apocalyptic number.

It is an amenable number.

40609133 is a deficient number, since it is larger than the sum of its proper divisors (18895).

40609133 is a wasteful number, since it uses less digits than its factorization.

40609133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18894.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 40609133 is about 6372.5295605434. The cubic root of 40609133 is about 343.7224556222.

Adding to 40609133 its reverse (33190604), we get a palindrome (73799737).

The spelling of 40609133 in words is "forty million, six hundred nine thousand, one hundred thirty-three".