320326344532 has 24 divisors (see below), whose sum is σ = 561699651240. Its totient is φ = 159840829440.

The previous prime is 320326344523. The next prime is 320326344557. The reversal of 320326344532 is 235443623023.

It can be written as a sum of positive squares in 4 ways, for example, as 162301013956 + 158025330576 = 402866^2 + 397524^2 .

It is a junction number, because it is equal to n+sod(n) for n = 320326344491 and 320326344500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25479144 + ... + 25491712.

It is an arithmetic number, because the mean of its divisors is an integer number (23404152135).

Almost surely, 2^320326344532 is an apocalyptic number.

It is an amenable number.

320326344532 is a deficient number, since it is larger than the sum of its proper divisors (241373306708).

320326344532 is a wasteful number, since it uses less digits than its factorization.

320326344532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24891 (or 24889 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 37.

Adding to 320326344532 its reverse (235443623023), we get a palindrome (555769967555).

The spelling of 320326344532 in words is "three hundred twenty billion, three hundred twenty-six million, three hundred forty-four thousand, five hundred thirty-two".