1928642528 has 24 divisors (see below), whose sum is σ = 3798259920. Its totient is φ = 964005120.

The previous prime is 1928642491. The next prime is 1928642533. The reversal of 1928642528 is 8252468291.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112613 + ... + 128603.

It is an arithmetic number, because the mean of its divisors is an integer number (158260830).

Almost surely, 2^1928642528 is an apocalyptic number.

It is an amenable number.

1928642528 is a deficient number, since it is larger than the sum of its proper divisors (1869617392).

1928642528 is a wasteful number, since it uses less digits than its factorization.

1928642528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19770 (or 19762 counting only the distinct ones).

The product of its digits is 552960, while the sum is 47.

The square root of 1928642528 is about 43916.3127778278. The cubic root of 1928642528 is about 1244.7550962076.

The spelling of 1928642528 in words is "one billion, nine hundred twenty-eight million, six hundred forty-two thousand, five hundred twenty-eight".