40520033 has 4 divisors (see below), whose sum is σ = 40538628. Its totient is φ = 40501440.

The previous prime is 40520017. The next prime is 40520057. The reversal of 40520033 is 33002504.

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 2166784 + 38353249 = 1472^2 + 6193^2 .

It is a cyclic number.

It is not a de Polignac number, because 40520033 - 2⁴ = 40520017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40519993 and 40520020.

It is not an unprimeable number, because it can be changed into a prime (40520093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5516 + ... + 10557.

It is an arithmetic number, because the mean of its divisors is an integer number (10134657).

Almost surely, 2^40520033 is an apocalyptic number.

It is an amenable number.

40520033 is a deficient number, since it is larger than the sum of its proper divisors (18595).

40520033 is a wasteful number, since it uses less digits than its factorization.

40520033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18594.

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 40520033 is about 6365.5347772202. The cubic root of 40520033 is about 343.4708858040.

Adding to 40520033 its reverse (33002504), we get a palindrome (73522537).

The spelling of 40520033 in words is "forty million, five hundred twenty thousand, thirty-three".