40530033 has 6 divisors (see below), whose sum is σ = 58543394. Its totient is φ = 27020016.

The previous prime is 40530031. The next prime is 40530041. The reversal of 40530033 is 33003504.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 34012224 + 6517809 = 5832^2 + 2553^2 .

It is not a de Polignac number, because 40530033 - 2¹ = 40530031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40529988 and 40530015.

It is not an unprimeable number, because it can be changed into a prime (40530031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2251660 + ... + 2251677.

Almost surely, 2^40530033 is an apocalyptic number.

It is an amenable number.

40530033 is a deficient number, since it is larger than the sum of its proper divisors (18013361).

40530033 is a wasteful number, since it uses less digits than its factorization.

40530033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4503343 (or 4503340 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 18.

The square root of 40530033 is about 6366.3202087234. The cubic root of 40530033 is about 343.4991387125.

Adding to 40530033 its reverse (33003504), we get a palindrome (73533537).

The spelling of 40530033 in words is "forty million, five hundred thirty thousand, thirty-three".