1028785296 has 160 divisors (see below), whose sum is σ = 3403496448. Its totient is φ = 259960320.

The previous prime is 1028785283. The next prime is 1028785327. The reversal of 1028785296 is 6925878201.

It is a Harshad number since it is a multiple of its sum of digits (48).

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 31 ways as a sum of consecutive naturals, for example, 132991 + ... + 140513.

Almost surely, 2^1028785296 is an apocalyptic number.

1028785296 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 1028785296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1701748224).

1028785296 is an abundant number, since it is smaller than the sum of its proper divisors (2374711152).

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

1028785296 is a wasteful number, since it uses less digits than its factorization.

1028785296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7589 (or 7583 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 48.

The square root of 1028785296 is about 32074.6831005390. The cubic root of 1028785296 is about 1009.5044773805.

The spelling of 1028785296 in words is "one billion, twenty-eight million, seven hundred eighty-five thousand, two hundred ninety-six".