32290066 has 4 divisors (see below), whose sum is σ = 48435102. Its totient is φ = 16145032.

The previous prime is 32290061. The next prime is 32290087. The reversal of 32290066 is 66009223.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 28569025 + 3721041 = 5345^2 + 1929^2 .

It is not an unprimeable number, because it can be changed into a prime (32290061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8072515 + ... + 8072518.

Almost surely, 2^32290066 is an apocalyptic number.

32290066 is a deficient number, since it is larger than the sum of its proper divisors (16145036).

32290066 is a wasteful number, since it uses less digits than its factorization.

32290066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16145035.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 32290066 is about 5682.4348654428. The cubic root of 32290066 is about 318.4365995086.

Adding to 32290066 its reverse (66009223), we get a palindrome (98299289).

The spelling of 32290066 in words is "thirty-two million, two hundred ninety thousand, sixty-six".