40305133 has 4 divisors (see below), whose sum is σ = 43969248. Its totient is φ = 36641020.

The previous prime is 40305121. The next prime is 40305193. The reversal of 40305133 is 33150304.

40305133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40305133 - 2¹⁷ = 40174061 is a prime.

It is a super-2 number, since 2×40305133² = 3249007492295378, which 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 40305133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40305193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1832041 + ... + 1832062.

It is an arithmetic number, because the mean of its divisors is an integer number (10992312).

Almost surely, 2^40305133 is an apocalyptic number.

It is an amenable number.

40305133 is a deficient number, since it is larger than the sum of its proper divisors (3664115).

40305133 is a wasteful number, since it uses less digits than its factorization.

40305133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3664114.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 40305133 is about 6348.6323724090. The cubic root of 40305133 is about 342.8626042367.

Adding to 40305133 its reverse (33150304), we get a palindrome (73455437).

The spelling of 40305133 in words is "forty million, three hundred five thousand, one hundred thirty-three".