32730945 has 32 divisors (see below), whose sum is σ = 57480192. Its totient is φ = 15804672.

The previous prime is 32730917. The next prime is 32730949. The reversal of 32730945 is 54903723.

It is a happy number.

It is not a de Polignac number, because 32730945 - 2⁵ = 32730913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (32730949) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8752 + ... + 11918.

It is an arithmetic number, because the mean of its divisors is an integer number (1796256).

Almost surely, 2^32730945 is an apocalyptic number.

It is an amenable number.

32730945 is a deficient number, since it is larger than the sum of its proper divisors (24749247).

32730945 is a wasteful number, since it uses less digits than its factorization.

32730945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3241.

The product of its (nonzero) digits is 22680, while the sum is 33.

The square root of 32730945 is about 5721.0964858146. The cubic root of 32730945 is about 319.8793327591.

The spelling of 32730945 in words is "thirty-two million, seven hundred thirty thousand, nine hundred forty-five".