1928874725 has 24 divisors (see below), whose sum is σ = 2486799168. Its totient is φ = 1482940800.

The previous prime is 1928874721. The next prime is 1928874793. The reversal of 1928874725 is 5274788291.

It is not a de Polignac number, because 1928874725 - 2² = 1928874721 is a prime.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1928874721) 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 23 ways as a sum of consecutive naturals, for example, 54632 + ... + 82718.

It is an arithmetic number, because the mean of its divisors is an integer number (103616632).

Almost surely, 2^1928874725 is an apocalyptic number.

It is an amenable number.

1928874725 is a deficient number, since it is larger than the sum of its proper divisors (557924443).

1928874725 is a wasteful number, since it uses less digits than its factorization.

1928874725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28205 (or 28200 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 53.

The square root of 1928874725 is about 43918.9563286743. The cubic root of 1928874725 is about 1244.8050478871.

The spelling of 1928874725 in words is "one billion, nine hundred twenty-eight million, eight hundred seventy-four thousand, seven hundred twenty-five".