32440073 has 2 divisors, whose sum is σ = 32440074. Its totient is φ = 32440072.

The previous prime is 32440069. The next prime is 32440129. The reversal of 32440073 is 37004423.

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., 32398864 + 41209 = 5692^2 + 203^2 .

It is a cyclic number.

It is not a de Polignac number, because 32440073 - 2² = 32440069 is a prime.

It is not a weakly prime, because it can be changed into another prime (32440003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16220036 + 16220037.

It is an arithmetic number, because the mean of its divisors is an integer number (16220037).

Almost surely, 2^32440073 is an apocalyptic number.

It is an amenable number.

32440073 is a deficient number, since it is larger than the sum of its proper divisors (1).

32440073 is an equidigital number, since it uses as much as digits as its factorization.

32440073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 32440073 is about 5695.6187547974. The cubic root of 32440073 is about 318.9289484482.

Adding to 32440073 its reverse (37004423), we get a palindrome (69444496).

The spelling of 32440073 in words is "thirty-two million, four hundred forty thousand, seventy-three".