320489470 has 64 divisors (see below), whose sum is σ = 687108096. Its totient is φ = 105315840.

The previous prime is 320489441. The next prime is 320489471. The reversal of 320489470 is 74984023.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320489471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 244557 + ... + 245863.

It is an arithmetic number, because the mean of its divisors is an integer number (10736064).

Almost surely, 2^320489470 is an apocalyptic number.

320489470 is an abundant number, since it is smaller than the sum of its proper divisors (366618626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320489470 is a wasteful number, since it uses less digits than its factorization.

320489470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 320489470 is about 17902.2196947753. The cubic root of 320489470 is about 684.3389434796.

The spelling of 320489470 in words is "three hundred twenty million, four hundred eighty-nine thousand, four hundred seventy".