1147913728 has 160 divisors (see below), whose sum is σ = 2698264800. Its totient is φ = 483065856.

The previous prime is 1147913719. The next prime is 1147913801. The reversal of 1147913728 is 8273197411.

Its product of digits (84672) is a multiple of the sum of its prime factors (392).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 3667300 + ... + 3667612.

It is an arithmetic number, because the mean of its divisors is an integer number (16864155).

Almost surely, 2^1147913728 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 1147913728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1349132400).

1147913728 is an abundant number, since it is smaller than the sum of its proper divisors (1550351072).

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

1147913728 is a wasteful number, since it uses less digits than its factorization.

1147913728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392 (or 376 counting only the distinct ones).

The product of its digits is 84672, while the sum is 43.

The square root of 1147913728 is about 33880.8755494896. The cubic root of 1147913728 is about 1047.0556144813.

The spelling of 1147913728 in words is "one billion, one hundred forty-seven million, nine hundred thirteen thousand, seven hundred twenty-eight".