1153442728 has 32 divisors (see below), whose sum is σ = 2285467200. Its totient is φ = 544223232.

The previous prime is 1153442677. The next prime is 1153442753. The reversal of 1153442728 is 8272443511.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24301 + ... + 53827.

It is an arithmetic number, because the mean of its divisors is an integer number (71420850).

Almost surely, 2^1153442728 is an apocalyptic number.

It is an amenable number.

1153442728 is a deficient number, since it is larger than the sum of its proper divisors (1132024472).

1153442728 is a wasteful number, since it uses less digits than its factorization.

1153442728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29809 (or 29805 counting only the distinct ones).

The product of its digits is 53760, while the sum is 37.

The square root of 1153442728 is about 33962.3722375219. The cubic root of 1153442728 is about 1048.7339928316.

The spelling of 1153442728 in words is "one billion, one hundred fifty-three million, four hundred forty-two thousand, seven hundred twenty-eight".