1028899584 has 270 divisors, whose sum is σ = 3231288060. Its totient is φ = 325527552.

The previous prime is 1028899583. The next prime is 1028899591. The reversal of 1028899584 is 4859988201.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 1028899584.

It is not an unprimeable number, because it can be changed into a prime (1028899583) by changing a digit.

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 29 ways as a sum of consecutive naturals, for example, 17438947 + ... + 17439005.

Almost surely, 2^1028899584 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 1028899584, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1615644030).

1028899584 is an abundant number, since it is smaller than the sum of its proper divisors (2202388476).

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

1028899584 is an frugal number, since it uses more digits than its factorization.

1028899584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145 (or 93 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 54.

The square root of 1028899584 is about 32076.4646430993. The cubic root of 1028899584 is about 1009.5418580261.

The spelling of 1028899584 in words is "one billion, twenty-eight million, eight hundred ninety-nine thousand, five hundred eighty-four".