648070480 has 20 divisors (see below), whose sum is σ = 1506764052. Its totient is φ = 259228160.

The previous prime is 648070457. The next prime is 648070513. The reversal of 648070480 is 84070846.

It can be written as a sum of positive squares in 2 ways, for example, as 156650256 + 491420224 = 12516^2 + 22168^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4050361 + ... + 4050520.

Almost surely, 2^648070480 is an apocalyptic number.

It is an amenable number.

648070480 is an abundant number, since it is smaller than the sum of its proper divisors (858693572).

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

648070480 is a wasteful number, since it uses less digits than its factorization.

648070480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8100894 (or 8100888 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 648070480 is about 25457.2284430179. The cubic root of 648070480 is about 865.3811144266.

The spelling of 648070480 in words is "six hundred forty-eight million, seventy thousand, four hundred eighty".