648806260 has 12 divisors (see below), whose sum is σ = 1362493188. Its totient is φ = 259522496.

The previous prime is 648806227. The next prime is 648806293. The reversal of 648806260 is 62608846.

It is an interprime number because it is at equal distance from previous prime (648806227) and next prime (648806293).

It can be written as a sum of positive squares in 2 ways, for example, as 186814224 + 461992036 = 13668^2 + 21494^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16220137 + ... + 16220176.

It is an arithmetic number, because the mean of its divisors is an integer number (113541099).

Almost surely, 2^648806260 is an apocalyptic number.

It is an amenable number.

648806260 is an abundant number, since it is smaller than the sum of its proper divisors (713686928).

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

648806260 is a wasteful number, since it uses less digits than its factorization.

648806260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32440322 (or 32440320 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 648806260 is about 25471.6756417790. The cubic root of 648806260 is about 865.7084910107.

The spelling of 648806260 in words is "six hundred forty-eight million, eight hundred six thousand, two hundred sixty".