648342 has 24 divisors (see below), whose sum is σ = 1419600. Its totient is φ = 213840.

The previous prime is 648341. The next prime is 648343. The reversal of 648342 is 243846.

648342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (648341) and next prime (648343).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3159 + ... + 3357.

It is an arithmetic number, because the mean of its divisors is an integer number (59150).

2⁶⁴⁸³⁴² is an apocalyptic number.

648342 is an abundant number, since it is smaller than the sum of its proper divisors (771258).

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

648342 is a wasteful number, since it uses less digits than its factorization.

648342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388 (or 385 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 648342 is about 805.1968703367. The cubic root of 648342 is about 86.5501952864.

Subtracting from 648342 its reverse (243846), we obtain a square (404496 = 636²).

It can be divided in two parts, 648 and 342, that added together give a triangular number (990 = T₄₄).

The spelling of 648342 in words is "six hundred forty-eight thousand, three hundred forty-two".