3231648 has 108 divisors (see below), whose sum is σ = 10737090. Its totient is φ = 919296.

The previous prime is 3231643. The next prime is 3231667. The reversal of 3231648 is 8461323.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2039184 + 1192464 = 1428^2 + 1092^2 .

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (3231643) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 13998 + ... + 14226.

Almost surely, 2^3231648 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 3231648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5368545).

3231648 is an abundant number, since it is smaller than the sum of its proper divisors (7505442).

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

3231648 is a wasteful number, since it uses less digits than its factorization.

3231648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259 (or 241 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 3231648 is about 1797.6785029587. The cubic root of 3231648 is about 147.8454681173.

The spelling of 3231648 in words is "three million, two hundred thirty-one thousand, six hundred forty-eight".