1025188928 has 56 divisors (see below), whose sum is σ = 2193767520. Its totient is φ = 473748480.

The previous prime is 1025188921. The next prime is 1025188937. The reversal of 1025188928 is 8298815201.

It is not an unprimeable number, because it can be changed into a prime (1025188921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39575 + ... + 60137.

It is an arithmetic number, because the mean of its divisors is an integer number (39174420).

Almost surely, 2^1025188928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1025188928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1096883760).

1025188928 is an abundant number, since it is smaller than the sum of its proper divisors (1168578592).

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

1025188928 is a wasteful number, since it uses less digits than its factorization.

1025188928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20635 (or 20625 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 44.

The square root of 1025188928 is about 32018.5716108636. The cubic root of 1025188928 is about 1008.3267815950.

The spelling of 1025188928 in words is "one billion, twenty-five million, one hundred eighty-eight thousand, nine hundred twenty-eight".