649382 has 16 divisors (see below), whose sum is σ = 1071360. Its totient is φ = 293832.

The previous prime is 649381. The next prime is 649403. The reversal of 649382 is 283946.

649382 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 503 + ... + 1245.

It is an arithmetic number, because the mean of its divisors is an integer number (66960).

2⁶⁴⁹³⁸² is an apocalyptic number.

649382 is a deficient number, since it is larger than the sum of its proper divisors (421978).

649382 is a wasteful number, since it uses less digits than its factorization.

649382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787.

The product of its digits is 10368, while the sum is 32.

The square root of 649382 is about 805.8424163569. The cubic root of 649382 is about 86.5964487127.

The spelling of 649382 in words is "six hundred forty-nine thousand, three hundred eighty-two".