649025262 has 12 divisors (see below), whose sum is σ = 1406221440. Its totient is φ = 216341748.

The previous prime is 649025213. The next prime is 649025281. The reversal of 649025262 is 262520946.

649025262 is a `hidden beast` number, since 649 + 0 + 2 + 5 + 2 + 6 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18028462 + ... + 18028497.

It is an arithmetic number, because the mean of its divisors is an integer number (117185120).

Almost surely, 2^649025262 is an apocalyptic number.

649025262 is an abundant number, since it is smaller than the sum of its proper divisors (757196178).

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

649025262 is a wasteful number, since it uses less digits than its factorization.

649025262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36056967 (or 36056964 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 649025262 is about 25475.9742110091. The cubic root of 649025262 is about 865.8058855513.

The spelling of 649025262 in words is "six hundred forty-nine million, twenty-five thousand, two hundred sixty-two".