649244 has 12 divisors (see below), whose sum is σ = 1185744. Its totient is φ = 310464.

The previous prime is 649217. The next prime is 649261. The reversal of 649244 is 442946.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3437 + ... + 3620.

It is an arithmetic number, because the mean of its divisors is an integer number (98812).

2⁶⁴⁹²⁴⁴ is an apocalyptic number.

It is an amenable number.

649244 is a deficient number, since it is larger than the sum of its proper divisors (536500).

649244 is a wasteful number, since it uses less digits than its factorization.

649244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7084 (or 7082 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

The square root of 649244 is about 805.7567871262. The cubic root of 649244 is about 86.5903140819.

The spelling of 649244 in words is "six hundred forty-nine thousand, two hundred forty-four".