320489033 has 4 divisors (see below), whose sum is σ = 320768148. Its totient is φ = 320209920.

The previous prime is 320489027. The next prime is 320489041. The reversal of 320489033 is 330984023.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 126945289 + 193543744 = 11267^2 + 13912^2 .

It is a cyclic number.

It is not a de Polignac number, because 320489033 - 2¹⁰ = 320488009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320489633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137828 + ... + 140133.

It is an arithmetic number, because the mean of its divisors is an integer number (80192037).

Almost surely, 2^320489033 is an apocalyptic number.

It is an amenable number.

320489033 is a deficient number, since it is larger than the sum of its proper divisors (279115).

320489033 is a wasteful number, since it uses less digits than its factorization.

320489033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279114.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 320489033 is about 17902.2074895807. The cubic root of 320489033 is about 684.3386324385.

The spelling of 320489033 in words is "three hundred twenty million, four hundred eighty-nine thousand, thirty-three".