648044268 has 24 divisors (see below), whose sum is σ = 1531246080. Its totient is φ = 213280080.

The previous prime is 648044263. The next prime is 648044317. The reversal of 648044268 is 862440846.

648044268 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×648044268² = 839922746575311648, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (648044263) 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, 340848 + ... + 342743.

It is an arithmetic number, because the mean of its divisors is an integer number (63801920).

Almost surely, 2^648044268 is an apocalyptic number.

It is an amenable number.

648044268 is an abundant number, since it is smaller than the sum of its proper divisors (883201812).

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

648044268 is a wasteful number, since it uses less digits than its factorization.

648044268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683677 (or 683675 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 42.

The square root of 648044268 is about 25456.7136135048. The cubic root of 648044268 is about 865.3694471382.

The spelling of 648044268 in words is "six hundred forty-eight million, forty-four thousand, two hundred sixty-eight".