32660072 has 16 divisors (see below), whose sum is σ = 61317060. Its totient is φ = 16308864.

The previous prime is 32660053. The next prime is 32660083. The reversal of 32660072 is 27006623.

32660072 is nontrivially palindromic in base 15.

It can be written as a sum of positive squares in 2 ways, for example, as 32330596 + 329476 = 5686^2 + 574^2 .

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 5318 + ... + 9674.

Almost surely, 2^32660072 is an apocalyptic number.

It is an amenable number.

32660072 is a deficient number, since it is larger than the sum of its proper divisors (28656988).

32660072 is a wasteful number, since it uses less digits than its factorization.

32660072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5300 (or 5296 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 32660072 is about 5714.8991242191. The cubic root of 32660072 is about 319.6482854444.

Adding to 32660072 its reverse (27006623), we get a palindrome (59666695).

The spelling of 32660072 in words is "thirty-two million, six hundred sixty thousand, seventy-two".