649330 has 16 divisors (see below), whose sum is σ = 1275264. Its totient is φ = 236080.

The previous prime is 649321. The next prime is 649361. The reversal of 649330 is 33946.

649330 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 = 649295 and 649304.

It is an unprimeable number.

649330 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 7 ways as a sum of consecutive naturals, for example, 2842 + ... + 3061.

It is an arithmetic number, because the mean of its divisors is an integer number (79704).

2⁶⁴⁹³³⁰ is an apocalyptic number.

649330 is a deficient number, since it is larger than the sum of its proper divisors (625934).

649330 is a wasteful number, since it uses less digits than its factorization.

649330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5921.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 649330 is about 805.8101513384. The cubic root of 649330 is about 86.5941372147.

It can be divided in two parts, 649 and 330, that added together give a palindrome (979).

The spelling of 649330 in words is "six hundred forty-nine thousand, three hundred thirty".