1928565656 has 32 divisors (see below), whose sum is σ = 3750354000. Its totient is φ = 928642176.

The previous prime is 1928565649. The next prime is 1928565659. The reversal of 1928565656 is 6565658291.

It is a junction number, because it is equal to n+sod(n) for n = 1928565598 and 1928565607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1928565659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81635 + ... + 102573.

Almost surely, 2^1928565656 is an apocalyptic number.

It is an amenable number.

1928565656 is a deficient number, since it is larger than the sum of its proper divisors (1821788344).

1928565656 is a wasteful number, since it uses less digits than its factorization.

1928565656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21371 (or 21367 counting only the distinct ones).

The product of its digits is 3888000, while the sum is 53.

The square root of 1928565656 is about 43915.4375590179. The cubic root of 1928565656 is about 1244.7385581359.

The spelling of 1928565656 in words is "one billion, nine hundred twenty-eight million, five hundred sixty-five thousand, six hundred fifty-six".