648380 has 24 divisors (see below), whose sum is σ = 1442448. Its totient is φ = 243968.

The previous prime is 648379. The next prime is 648383. The reversal of 648380 is 83846.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648383) 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 7 ways as a sum of consecutive naturals, for example, 614 + ... + 1293.

It is an arithmetic number, because the mean of its divisors is an integer number (60102).

2⁶⁴⁸³⁸⁰ is an apocalyptic number.

It is an amenable number.

648380 is an abundant number, since it is smaller than the sum of its proper divisors (794068).

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

648380 is a wasteful number, since it uses less digits than its factorization.

648380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1933 (or 1931 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 648380 is about 805.2204667046. The cubic root of 648380 is about 86.5518861858.

The spelling of 648380 in words is "six hundred forty-eight thousand, three hundred eighty".