40033009 has 2 divisors, whose sum is σ = 40033010. Its totient is φ = 40033008.

The previous prime is 40033003. The next prime is 40033051. The reversal of 40033009 is 90033004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37552384 + 2480625 = 6128^2 + 1575^2 .

It is a cyclic number.

It is not a de Polignac number, because 40033009 - 2¹⁵ = 40000241 is a prime.

It is not a weakly prime, because it can be changed into another prime (40033003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20016504 + 20016505.

It is an arithmetic number, because the mean of its divisors is an integer number (20016505).

Almost surely, 2^40033009 is an apocalyptic number.

It is an amenable number.

40033009 is a deficient number, since it is larger than the sum of its proper divisors (1).

40033009 is an equidigital number, since it uses as much as digits as its factorization.

40033009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 40033009 is about 6327.1643727660. The cubic root of 40033009 is about 342.0892377964.

The spelling of 40033009 in words is "forty million, thirty-three thousand, nine".