320412335200 has 72 divisors (see below), whose sum is σ = 783158655888. Its totient is φ = 128008942080.

The previous prime is 320412335197. The next prime is 320412335219. The reversal of 320412335200 is 2533214023.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 415074 + ... + 901726.

It is an arithmetic number, because the mean of its divisors is an integer number (10877203554).

Almost surely, 2^320412335200 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320412335200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (391579327944).

320412335200 is an abundant number, since it is smaller than the sum of its proper divisors (462746320688).

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

320412335200 is a wasteful number, since it uses less digits than its factorization.

320412335200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487496 (or 487483 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 320412335200 its reverse (2533214023), we get a palindrome (322945549223).

It can be divided in two parts, 3204123 and 35200, that added together give a palindrome (3239323).

The spelling of 320412335200 in words is "three hundred twenty billion, four hundred twelve million, three hundred thirty-five thousand, two hundred".