648232 has 32 divisors (see below), whose sum is σ = 1370880. Its totient is φ = 285120.

The previous prime is 648229. The next prime is 648239. The reversal of 648232 is 232846.

It is a happy number.

It is a Smith number, since the sum of its digits (25) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 648197 and 648206.

It is not an unprimeable number, because it can be changed into a prime (648239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2257 + ... + 2527.

It is an arithmetic number, because the mean of its divisors is an integer number (42840).

2⁶⁴⁸²³² 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 648232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (685440).

648232 is an abundant number, since it is smaller than the sum of its proper divisors (722648).

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

648232 is a wasteful number, since it uses less digits than its factorization.

648232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313 (or 309 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 648232 is about 805.1285611627. The cubic root of 648232 is about 86.5453002054.

The spelling of 648232 in words is "six hundred forty-eight thousand, two hundred thirty-two".