1028925216 has 144 divisors (see below), whose sum is σ = 3295289088. Its totient is φ = 301708800.

The previous prime is 1028925203. The next prime is 1028925239. The reversal of 1028925216 is 6125298201.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92970 + ... + 103446.

It is an arithmetic number, because the mean of its divisors is an integer number (22883952).

Almost surely, 2^1028925216 is an apocalyptic number.

1028925216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1028925216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1647644544).

1028925216 is an abundant number, since it is smaller than the sum of its proper divisors (2266363872).

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

1028925216 is a wasteful number, since it uses less digits than its factorization.

1028925216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10535 (or 10524 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 1028925216 is about 32076.8641858895. The cubic root of 1028925216 is about 1009.5502412095.

The spelling of 1028925216 in words is "one billion, twenty-eight million, nine hundred twenty-five thousand, two hundred sixteen".