1157727728 has 10 divisors (see below), whose sum is σ = 2243097504. Its totient is φ = 578863856.

The previous prime is 1157727719. The next prime is 1157727733. The reversal of 1157727728 is 8277277511.

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 as a sum of consecutive naturals, namely, 36178976 + ... + 36179007.

Almost surely, 2^1157727728 is an apocalyptic number.

It is an amenable number.

1157727728 is a deficient number, since it is larger than the sum of its proper divisors (1085369776).

1157727728 is an equidigital number, since it uses as much as digits as its factorization.

1157727728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72357991 (or 72357985 counting only the distinct ones).

The product of its digits is 384160, while the sum is 47.

The square root of 1157727728 is about 34025.3982783450. The cubic root of 1157727728 is about 1050.0310581894.

The spelling of 1157727728 in words is "one billion, one hundred fifty-seven million, seven hundred twenty-seven thousand, seven hundred twenty-eight".