321601032 has 96 divisors (see below), whose sum is σ = 900694080. Its totient is φ = 103608960.

The previous prime is 321601031. The next prime is 321601043. The reversal of 321601032 is 230106123.

321601032 is a `hidden beast` number, since 32 + 1 + 601 + 0 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 321600996 and 321601014.

It is not an unprimeable number, because it can be changed into a prime (321601031) 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 23 ways as a sum of consecutive naturals, for example, 270343 + ... + 271529.

It is an arithmetic number, because the mean of its divisors is an integer number (9382230).

Almost surely, 2^321601032 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 321601032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (450347040).

321601032 is an abundant number, since it is smaller than the sum of its proper divisors (579093048).

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

321601032 is a wasteful number, since it uses less digits than its factorization.

321601032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323 (or 1316 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 321601032 is about 17933.2381905779. The cubic root of 321601032 is about 685.1292007701.

Adding to 321601032 its reverse (230106123), we get a palindrome (551707155).

The spelling of 321601032 in words is "three hundred twenty-one million, six hundred one thousand, thirty-two".