648565424 has 40 divisors (see below), whose sum is σ = 1355434080. Its totient is φ = 298856448.

The previous prime is 648565387. The next prime is 648565447. The reversal of 648565424 is 424565846.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149072 + ... + 153360.

It is an arithmetic number, because the mean of its divisors is an integer number (33885852).

Almost surely, 2^648565424 is an apocalyptic number.

It is an amenable number.

648565424 is an abundant number, since it is smaller than the sum of its proper divisors (706868656).

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

648565424 is a wasteful number, since it uses less digits than its factorization.

648565424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5037 (or 5031 counting only the distinct ones).

The product of its digits is 921600, while the sum is 44.

The square root of 648565424 is about 25466.9476773327. The cubic root of 648565424 is about 865.6013611499.

The spelling of 648565424 in words is "six hundred forty-eight million, five hundred sixty-five thousand, four hundred twenty-four".