648382932 has 18 divisors (see below), whose sum is σ = 1638968058. Its totient is φ = 216127632.

The previous prime is 648382927. The next prime is 648382951. The reversal of 648382932 is 239283846.

648382932 is a `hidden beast` number, since 6 + 483 + 82 + 93 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 536107716 + 112275216 = 23154^2 + 10596^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9005283 + ... + 9005354.

It is an arithmetic number, because the mean of its divisors is an integer number (91053781).

Almost surely, 2^648382932 is an apocalyptic number.

It is an amenable number.

648382932 is an abundant number, since it is smaller than the sum of its proper divisors (990585126).

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

648382932 is a wasteful number, since it uses less digits than its factorization.

648382932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18010647 (or 18010642 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 648382932 is about 25463.3645066790. The cubic root of 648382932 is about 865.5201664926.

The spelling of 648382932 in words is "six hundred forty-eight million, three hundred eighty-two thousand, nine hundred thirty-two".