1147798528 has 44 divisors (see below), whose sum is σ = 2337878700. Its totient is φ = 563044352.

The previous prime is 1147798513. The next prime is 1147798541. The reversal of 1147798528 is 8258977411.

It can be written as a sum of positive squares in 2 ways, for example, as 440664064 + 707134464 = 20992^2 + 26592^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43698 + ... + 64846.

Almost surely, 2^1147798528 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 1147798528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1168939350).

1147798528 is an abundant number, since it is smaller than the sum of its proper divisors (1190080172).

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

1147798528 is an equidigital number, since it uses as much as digits as its factorization.

1147798528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21222 (or 21204 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 52.

The square root of 1147798528 is about 33879.1754327050. The cubic root of 1147798528 is about 1047.0205872143.

The spelling of 1147798528 in words is "one billion, one hundred forty-seven million, seven hundred ninety-eight thousand, five hundred twenty-eight".