649250 has 48 divisors (see below), whose sum is σ = 1440504. Its totient is φ = 218400.

The previous prime is 649217. The next prime is 649261. The reversal of 649250 is 52946.

It can be written as a sum of positive squares in 4 ways, for example, as 261121 + 388129 = 511^2 + 623^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 649250.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12224 + ... + 12276.

2⁶⁴⁹²⁵⁰ is an apocalyptic number.

649250 is an abundant number, since it is smaller than the sum of its proper divisors (791254).

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

649250 is a wasteful number, since it uses less digits than its factorization.

649250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84 (or 67 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 649250 is about 805.7605103255. The cubic root of 649250 is about 86.5905808230.

The spelling of 649250 in words is "six hundred forty-nine thousand, two hundred fifty".