649272 has 32 divisors (see below), whose sum is σ = 1748880. Its totient is φ = 199680.

The previous prime is 649261. The next prime is 649273. The reversal of 649272 is 272946.

It is a happy number.

It is a d-powerful number, because it can be written as 6 + 4⁴ + 2⁹ + 9⁴ + 7⁶ + 2¹⁹ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649273) by changing a digit.

649272 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, 729 + ... + 1352.

2⁶⁴⁹²⁷² is an apocalyptic number.

It is an amenable number.

649272 is an abundant number, since it is smaller than the sum of its proper divisors (1099608).

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

649272 is a wasteful number, since it uses less digits than its factorization.

649272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2103 (or 2099 counting only the distinct ones).

The product of its digits is 6048, while the sum is 30.

The square root of 649272 is about 805.7741619089. The cubic root of 649272 is about 86.5915588599.

The spelling of 649272 in words is "six hundred forty-nine thousand, two hundred seventy-two".