648276630 has 32 divisors (see below), whose sum is σ = 1597917024. Its totient is φ = 168201216.

The previous prime is 648276617. The next prime is 648276631. The reversal of 648276630 is 36672846.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648276631) 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, 290907 + ... + 293126.

It is an arithmetic number, because the mean of its divisors is an integer number (49934907).

Almost surely, 2^648276630 is an apocalyptic number.

648276630 is an abundant number, since it is smaller than the sum of its proper divisors (949640394).

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

648276630 is a wasteful number, since it uses less digits than its factorization.

648276630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584080.

The product of its (nonzero) digits is 290304, while the sum is 42.

The square root of 648276630 is about 25461.2770693066. The cubic root of 648276630 is about 865.4728634002.

The spelling of 648276630 in words is "six hundred forty-eight million, two hundred seventy-six thousand, six hundred thirty".