1049728 has 32 divisors (see below), whose sum is σ = 2142000. Its totient is φ = 512256.

The previous prime is 1049717. The next prime is 1049747. The reversal of 1049728 is 8279401.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×1049728² = 2203857747968, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1049728.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7483 + ... + 7621.

2^1049728 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 1049728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1071000).

1049728 is an abundant number, since it is smaller than the sum of its proper divisors (1092272).

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

1049728 is an equidigital number, since it uses as much as digits as its factorization.

1049728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212 (or 200 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 1049728 is about 1024.5623455896. The cubic root of 1049728 is about 101.6308584217.

The spelling of 1049728 in words is "one million, forty-nine thousand, seven hundred twenty-eight".