320252445 has 24 divisors (see below), whose sum is σ = 555638616. Its totient is φ = 170636928.

The previous prime is 320252431. The next prime is 320252453. The reversal of 320252445 is 544252023.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4088484 + 316163961 = 2022^2 + 17781^2 .

It is not a de Polignac number, because 320252445 - 2⁶ = 320252381 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54679 + ... + 60251.

It is an arithmetic number, because the mean of its divisors is an integer number (23151609).

Almost surely, 2^320252445 is an apocalyptic number.

It is an amenable number.

320252445 is a deficient number, since it is larger than the sum of its proper divisors (235386171).

320252445 is a wasteful number, since it uses less digits than its factorization.

320252445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6861 (or 6858 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 320252445 is about 17895.5984811908. The cubic root of 320252445 is about 684.1701959260.

The spelling of 320252445 in words is "three hundred twenty million, two hundred fifty-two thousand, four hundred forty-five".