40032529 has 2 divisors, whose sum is σ = 40032530. Its totient is φ = 40032528.

The previous prime is 40032521. The next prime is 40032547. The reversal of 40032529 is 92523004.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40030929 + 1600 = 6327^2 + 40^2 .

It is a cyclic number.

It is not a de Polignac number, because 40032529 - 2³ = 40032521 is a prime.

It is not a weakly prime, because it can be changed into another prime (40032521) 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 as a sum of consecutive naturals, namely, 20016264 + 20016265.

It is an arithmetic number, because the mean of its divisors is an integer number (20016265).

Almost surely, 2^40032529 is an apocalyptic number.

It is an amenable number.

40032529 is a deficient number, since it is larger than the sum of its proper divisors (1).

40032529 is an equidigital number, since it uses as much as digits as its factorization.

40032529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 40032529 is about 6327.1264409683. The cubic root of 40032529 is about 342.0878705623.

The spelling of 40032529 in words is "forty million, thirty-two thousand, five hundred twenty-nine".