32320745 has 8 divisors (see below), whose sum is σ = 38987016. Its totient is φ = 25721856.

The previous prime is 32320711. The next prime is 32320759. The reversal of 32320745 is 54702323.

It can be written as a sum of positive squares in 4 ways, for example, as 9357481 + 22963264 = 3059^2 + 4792^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 32320745 - 2⁸ = 32320489 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15782 + ... + 17711.

It is an arithmetic number, because the mean of its divisors is an integer number (4873377).

Almost surely, 2^32320745 is an apocalyptic number.

It is an amenable number.

32320745 is a deficient number, since it is larger than the sum of its proper divisors (6666271).

32320745 is a wasteful number, since it uses less digits than its factorization.

32320745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33691.

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 32320745 is about 5685.1336835645. The cubic root of 32320745 is about 318.5374171420.

The spelling of 32320745 in words is "thirty-two million, three hundred twenty thousand, seven hundred forty-five".