1153728 has 42 divisors (see below), whose sum is σ = 3308604. Its totient is φ = 384384.

The previous prime is 1153721. The next prime is 1153729. The reversal of 1153728 is 8273511.

It is not an unprimeable number, because it can be changed into a prime (1153721) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 426 + ... + 1577.

2^1153728 is an apocalyptic number.

1153728 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1153728 is an abundant number, since it is smaller than the sum of its proper divisors (2154876).

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

1153728 is a wasteful number, since it uses less digits than its factorization.

1153728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2021 (or 2008 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 1153728 is about 1074.1173120288. The cubic root of 1153728 is about 104.8820444106.

It can be divided in two parts, 1153 and 728, that added together give a palindrome (1881).

The spelling of 1153728 in words is "one million, one hundred fifty-three thousand, seven hundred twenty-eight".