320752 has 10 divisors (see below), whose sum is σ = 621488. Its totient is φ = 160368.

The previous prime is 320741. The next prime is 320759. The reversal of 320752 is 257023.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320759) by changing a digit.

320752 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10008 + ... + 10039.

2³²⁰⁷⁵² is an apocalyptic number.

It is an amenable number.

320752 is a deficient number, since it is larger than the sum of its proper divisors (300736).

320752 is a wasteful number, since it uses less digits than its factorization.

320752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20055 (or 20049 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 320752 is about 566.3497152820. The cubic root of 320752 is about 68.4525751977.

Adding to 320752 its reverse (257023), we get a palindrome (577775).

The spelling of 320752 in words is "three hundred twenty thousand, seven hundred fifty-two".