646048 has 24 divisors (see below), whose sum is σ = 1370628. Its totient is φ = 297984.

The previous prime is 646039. The next prime is 646067. The reversal of 646048 is 840646.

646048 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 535824 + 110224 = 732^2 + 332^2 .

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

646048 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 361 + ... + 1192.

2⁶⁴⁶⁰⁴⁸ is an apocalyptic number.

It is an amenable number.

646048 is an abundant number, since it is smaller than the sum of its proper divisors (724580).

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

646048 is a wasteful number, since it uses less digits than its factorization.

646048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1576 (or 1568 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 646048 is about 803.7711116979. The cubic root of 646048 is about 86.4479957383.

The spelling of 646048 in words is "six hundred forty-six thousand, forty-eight".