1027021648 has 10 divisors (see below), whose sum is σ = 1989854474. Its totient is φ = 513510816.

The previous prime is 1027021643. The next prime is 1027021679. The reversal of 1027021648 is 8461207201.

It can be written as a sum of positive squares in only one way, i.e., 731594304 + 295427344 = 27048^2 + 17188^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1027021643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32094411 + ... + 32094442.

Almost surely, 2^1027021648 is an apocalyptic number.

It is an amenable number.

1027021648 is a deficient number, since it is larger than the sum of its proper divisors (962832826).

1027021648 is an equidigital number, since it uses as much as digits as its factorization.

1027021648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64188861 (or 64188855 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 1027021648 is about 32047.1784717469. The cubic root of 1027021648 is about 1008.9272824704.

Adding to 1027021648 its reverse (8461207201), we get a palindrome (9488228849).

The spelling of 1027021648 in words is "one billion, twenty-seven million, twenty-one thousand, six hundred forty-eight".