646024 has 16 divisors (see below), whose sum is σ = 1264320. Its totient is φ = 308880.

The previous prime is 646013. The next prime is 646027. The reversal of 646024 is 420646.

646024 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 645986 and 646004.

It is not an unprimeable number, because it can be changed into a prime (646027) 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, 1572 + ... + 1939.

It is an arithmetic number, because the mean of its divisors is an integer number (79020).

2⁶⁴⁶⁰²⁴ is an apocalyptic number.

It is an amenable number.

646024 is a deficient number, since it is larger than the sum of its proper divisors (618296).

646024 is a wasteful number, since it uses less digits than its factorization.

646024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3540 (or 3536 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 646024 is about 803.7561819358. The cubic root of 646024 is about 86.4469252411.

The spelling of 646024 in words is "six hundred forty-six thousand, twenty-four".