1025774728 has 16 divisors (see below), whose sum is σ = 2098175760. Its totient is φ = 466261200.

The previous prime is 1025774707. The next prime is 1025774731. The reversal of 1025774728 is 8274775201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5828178 + ... + 5828353.

It is an arithmetic number, because the mean of its divisors is an integer number (131135985).

Almost surely, 2^1025774728 is an apocalyptic number.

It is an amenable number.

1025774728 is an abundant number, since it is smaller than the sum of its proper divisors (1072401032).

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

1025774728 is a wasteful number, since it uses less digits than its factorization.

1025774728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11656548 (or 11656544 counting only the distinct ones).

The product of its (nonzero) digits is 219520, while the sum is 43.

The square root of 1025774728 is about 32027.7181204031. The cubic root of 1025774728 is about 1008.5187999773.

The spelling of 1025774728 in words is "one billion, twenty-five million, seven hundred seventy-four thousand, seven hundred twenty-eight".