320609088 has 42 divisors (see below), whose sum is σ = 918969714. Its totient is φ = 106869504.

The previous prime is 320609063. The next prime is 320609131. The reversal of 320609088 is 880906023.

It can be written as a sum of positive squares in only one way, i.e., 260887104 + 59721984 = 16152^2 + 7728^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

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 in 5 ways as a sum of consecutive naturals, for example, 277731 + ... + 278882.

Almost surely, 2^320609088 is an apocalyptic number.

It is an amenable number.

320609088 is an abundant number, since it is smaller than the sum of its proper divisors (598360626).

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

320609088 is a wasteful number, since it uses less digits than its factorization.

320609088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556631 (or 556618 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 320609088 is about 17905.5602537312. The cubic root of 320609088 is about 684.4240727181.

The spelling of 320609088 in words is "three hundred twenty million, six hundred nine thousand, eighty-eight".