648519232 has 28 divisors (see below), whose sum is σ = 1288676620. Its totient is φ = 323813376.

The previous prime is 648519227. The next prime is 648519259. The reversal of 648519232 is 232915846.

It can be written as a sum of positive squares in 2 ways, for example, as 336502336 + 312016896 = 18344^2 + 17664^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42628 + ... + 55804.

It is an arithmetic number, because the mean of its divisors is an integer number (46024165).

Almost surely, 2^648519232 is an apocalyptic number.

It is an amenable number.

648519232 is a deficient number, since it is larger than the sum of its proper divisors (640157388).

648519232 is a wasteful number, since it uses less digits than its factorization.

648519232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13958 (or 13948 counting only the distinct ones).

The product of its digits is 103680, while the sum is 40.

The square root of 648519232 is about 25466.0407601967. The cubic root of 648519232 is about 865.5808107649.

The spelling of 648519232 in words is "six hundred forty-eight million, five hundred nineteen thousand, two hundred thirty-two".