648748424 has 64 divisors (see below), whose sum is σ = 1319198400. Its totient is φ = 297969664.

The previous prime is 648748423. The next prime is 648748433. The reversal of 648748424 is 424847846.

It is not an unprimeable number, because it can be changed into a prime (648748423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1869419 + ... + 1869765.

It is an arithmetic number, because the mean of its divisors is an integer number (20612475).

Almost surely, 2^648748424 is an apocalyptic number.

It is an amenable number.

648748424 is an abundant number, since it is smaller than the sum of its proper divisors (670449976).

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

648748424 is a wasteful number, since it uses less digits than its factorization.

648748424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662 (or 658 counting only the distinct ones).

The product of its digits is 1376256, while the sum is 47.

The square root of 648748424 is about 25470.5403162163. The cubic root of 648748424 is about 865.6827665342.

The spelling of 648748424 in words is "six hundred forty-eight million, seven hundred forty-eight thousand, four hundred twenty-four".