40066533 has 12 divisors (see below), whose sum is σ = 62325900. Its totient is φ = 24656256.

The previous prime is 40066531. The next prime is 40066549. The reversal of 40066533 is 33566004.

40066533 is a `hidden beast` number, since 4 + 0 + 0 + 6 + 653 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3560769 + 36505764 = 1887^2 + 6042^2 .

It is not a de Polignac number, because 40066533 - 2¹ = 40066531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40066497 and 40066506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40066531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 171108 + ... + 171341.

It is an arithmetic number, because the mean of its divisors is an integer number (5193825).

Almost surely, 2^40066533 is an apocalyptic number.

It is an amenable number.

40066533 is a deficient number, since it is larger than the sum of its proper divisors (22259367).

40066533 is a wasteful number, since it uses less digits than its factorization.

40066533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342468 (or 342465 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 40066533 is about 6329.8130304141. The cubic root of 40066533 is about 342.1847006839.

The spelling of 40066533 in words is "forty million, sixty-six thousand, five hundred thirty-three".