648746328 has 64 divisors (see below), whose sum is σ = 1650348000. Its totient is φ = 212474880.

The previous prime is 648746323. The next prime is 648746347. The reversal of 648746328 is 823647846.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648746323) 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, 610918 + ... + 611978.

Almost surely, 2^648746328 is an apocalyptic number.

It is an amenable number.

648746328 is an abundant number, since it is smaller than the sum of its proper divisors (1001601672).

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

648746328 is a wasteful number, since it uses less digits than its factorization.

648746328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492 (or 1488 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 48.

The square root of 648746328 is about 25470.4991706091. The cubic root of 648746328 is about 865.6818342401.

The spelling of 648746328 in words is "six hundred forty-eight million, seven hundred forty-six thousand, three hundred twenty-eight".