649488 has 40 divisors (see below), whose sum is σ = 1918528. Its totient is φ = 185472.

The previous prime is 649487. The next prime is 649499. The reversal of 649488 is 884946.

It is a zygodrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 631 + ... + 1302.

2⁶⁴⁹⁴⁸⁸ is an apocalyptic number.

It is an amenable number.

649488 is an abundant number, since it is smaller than the sum of its proper divisors (1269040).

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

649488 is a wasteful number, since it uses less digits than its factorization.

649488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1951 (or 1945 counting only the distinct ones).

The product of its digits is 55296, while the sum is 39.

The square root of 649488 is about 805.9081833559. The cubic root of 649488 is about 86.6011602303.

It can be divided in two parts, 6 and 49488, that added together give a palindrome (49494).

The spelling of 649488 in words is "six hundred forty-nine thousand, four hundred eighty-eight".