32160256 has 40 divisors (see below), whose sum is σ = 67076064. Its totient is φ = 15375360.

The previous prime is 32160221. The next prime is 32160257. The reversal of 32160256 is 65206123.

It is a self number, because there is not a number n which added to its sum of digits gives 32160256.

It is not an unprimeable number, because it can be changed into a prime (32160257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10411 + ... + 13141.

Almost surely, 2^32160256 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 32160256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33538032).

32160256 is an abundant number, since it is smaller than the sum of its proper divisors (34915808).

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

32160256 is an equidigital number, since it uses as much as digits as its factorization.

32160256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2772 (or 2756 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 32160256 is about 5671.0013225179. The cubic root of 32160256 is about 318.0093084310.

Adding to 32160256 its reverse (65206123), we get a palindrome (97366379).

The spelling of 32160256 in words is "thirty-two million, one hundred sixty thousand, two hundred fifty-six".