648338 has 8 divisors (see below), whose sum is σ = 978480. Its totient is φ = 322180.

The previous prime is 648331. The next prime is 648341. The reversal of 648338 is 833846.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (648331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 548 + ... + 1263.

It is an arithmetic number, because the mean of its divisors is an integer number (122310).

2⁶⁴⁸³³⁸ is an apocalyptic number.

648338 is a deficient number, since it is larger than the sum of its proper divisors (330142).

648338 is a wasteful number, since it uses less digits than its factorization.

648338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1992.

The product of its digits is 13824, while the sum is 32.

The square root of 648338 is about 805.1943864683. The cubic root of 648338 is about 86.5500172932.

It can be divided in two parts, 648 and 338, that multiplied together give a square (219024 = 468²).

The spelling of 648338 in words is "six hundred forty-eight thousand, three hundred thirty-eight".