1932660648 has 72 divisors (see below), whose sum is σ = 5435479530. Its totient is φ = 644202720.

The previous prime is 1932660647. The next prime is 1932660679. The reversal of 1932660648 is 8460662391.

1932660648 is a `hidden beast` number, since 1 + 9 + 32 + 6 + 606 + 4 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1760473764 + 172186884 = 41958^2 + 13122^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (1932660647) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 34078 + ... + 70898.

Almost surely, 2^1932660648 is an apocalyptic number.

1932660648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1932660648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2717739765).

1932660648 is an abundant number, since it is smaller than the sum of its proper divisors (3502818882).

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

1932660648 is an frugal number, since it uses more digits than its factorization.

1932660648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36851 (or 36826 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 1932660648 is about 43962.0364405472. The cubic root of 1932660648 is about 1245.6189345246.

The spelling of 1932660648 in words is "one billion, nine hundred thirty-two million, six hundred sixty thousand, six hundred forty-eight".