648485334 has 48 divisors (see below), whose sum is σ = 1607553792. Its totient is φ = 185076144.

The previous prime is 648485293. The next prime is 648485351. The reversal of 648485334 is 433584846.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 648485334.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 139207 + ... + 143789.

It is an arithmetic number, because the mean of its divisors is an integer number (33490704).

Almost surely, 2^648485334 is an apocalyptic number.

648485334 is an abundant number, since it is smaller than the sum of its proper divisors (959068458).

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

648485334 is a wasteful number, since it uses less digits than its factorization.

648485334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5721 (or 5718 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 45.

The square root of 648485334 is about 25465.3751984926. The cubic root of 648485334 is about 865.5657292438.

The spelling of 648485334 in words is "six hundred forty-eight million, four hundred eighty-five thousand, three hundred thirty-four".