320880436 has 24 divisors (see below), whose sum is σ = 595031360. Its totient is φ = 150984000.

The previous prime is 320880431. The next prime is 320880499. The reversal of 320880436 is 634088023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320880431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2505 + ... + 25456.

Almost surely, 2^320880436 is an apocalyptic number.

It is an amenable number.

320880436 is a deficient number, since it is larger than the sum of its proper divisors (274150924).

320880436 is a wasteful number, since it uses less digits than its factorization.

320880436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28135 (or 28133 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 320880436 is about 17913.1358505428. The cubic root of 320880436 is about 684.6171060630.

The spelling of 320880436 in words is "three hundred twenty million, eight hundred eighty thousand, four hundred thirty-six".