320415612 has 48 divisors (see below), whose sum is σ = 820170624. Its totient is φ = 96552000.

The previous prime is 320415611. The next prime is 320415617. The reversal of 320415612 is 216514023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320415611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17187 + ... + 30597.

It is an arithmetic number, because the mean of its divisors is an integer number (17086888).

Almost surely, 2^320415612 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 320415612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (410085312).

320415612 is an abundant number, since it is smaller than the sum of its proper divisors (499755012).

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

320415612 is a wasteful number, since it uses less digits than its factorization.

320415612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13610 (or 13608 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 320415612 is about 17900.1567590901. The cubic root of 320415612 is about 684.2863699490.

Adding to 320415612 its reverse (216514023), we get a palindrome (536929635).

The spelling of 320415612 in words is "three hundred twenty million, four hundred fifteen thousand, six hundred twelve".