320851040 has 24 divisors (see below), whose sum is σ = 758010960. Its totient is φ = 128340352.

The previous prime is 320851021. The next prime is 320851051. The reversal of 320851040 is 40158023.

It is a junction number, because it is equal to n+sod(n) for n = 320850997 and 320851015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1002500 + ... + 1002819.

It is an arithmetic number, because the mean of its divisors is an integer number (31583790).

Almost surely, 2^320851040 is an apocalyptic number.

It is an amenable number.

320851040 is an abundant number, since it is smaller than the sum of its proper divisors (437159920).

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

320851040 is a wasteful number, since it uses less digits than its factorization.

320851040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2005334 (or 2005326 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 320851040 is about 17912.3153165636. The cubic root of 320851040 is about 684.5961993983.

The spelling of 320851040 in words is "three hundred twenty million, eight hundred fifty-one thousand, forty".