320539672 has 8 divisors (see below), whose sum is σ = 601011900. Its totient is φ = 160269832.

The previous prime is 320539669. The next prime is 320539693. The reversal of 320539672 is 276935023.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20033722 + ... + 20033737.

Almost surely, 2^320539672 is an apocalyptic number.

It is an amenable number.

320539672 is a deficient number, since it is larger than the sum of its proper divisors (280472228).

320539672 is a wasteful number, since it uses less digits than its factorization.

320539672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40067465 (or 40067461 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 37.

The square root of 320539672 is about 17903.6217565050. The cubic root of 320539672 is about 684.3746736083.

The spelling of 320539672 in words is "three hundred twenty million, five hundred thirty-nine thousand, six hundred seventy-two".