1335728 has 20 divisors (see below), whose sum is σ = 2672448. Its totient is φ = 646080.

The previous prime is 1335689. The next prime is 1335743. The reversal of 1335728 is 8275331.

1335728 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 1335728.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 851 + ... + 1842.

2^1335728 is an apocalyptic number.

It is an amenable number.

1335728 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1335728 is a wasteful number, since it uses less digits than its factorization.

1335728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2732 (or 2726 counting only the distinct ones).

The product of its digits is 5040, while the sum is 29.

The square root of 1335728 is about 1155.7369943028. The cubic root of 1335728 is about 110.1300940146.

It can be divided in two parts, 13 and 35728, that multiplied together give a palindrome (464464).

The spelling of 1335728 in words is "one million, three hundred thirty-five thousand, seven hundred twenty-eight".