649254 has 16 divisors (see below), whose sum is σ = 1306800. Its totient is φ = 215040.

The previous prime is 649217. The next prime is 649261. The reversal of 649254 is 452946.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 649254.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1222 + ... + 1670.

It is an arithmetic number, because the mean of its divisors is an integer number (81675).

2⁶⁴⁹²⁵⁴ is an apocalyptic number.

649254 is an abundant number, since it is smaller than the sum of its proper divisors (657546).

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

649254 is a wasteful number, since it uses less digits than its factorization.

649254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695.

The product of its digits is 8640, while the sum is 30.

The square root of 649254 is about 805.7629924488. The cubic root of 649254 is about 86.5907586495.

It can be divided in two parts, 649 and 254, that added together give a triangular number (903 = T₄₂).

The spelling of 649254 in words is "six hundred forty-nine thousand, two hundred fifty-four".