2015728 has 40 divisors (see below), whose sum is σ = 4593456. Its totient is φ = 844800.

The previous prime is 2015701. The next prime is 2015731. The reversal of 2015728 is 8275102.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

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 in 7 ways as a sum of consecutive naturals, for example, 1848 + ... + 2728.

2^2015728 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 2015728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2296728).

2015728 is an abundant number, since it is smaller than the sum of its proper divisors (2577728).

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

2015728 is a wasteful number, since it uses less digits than its factorization.

2015728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913 (or 907 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 2015728 is about 1419.7633605640. The cubic root of 2015728 is about 126.3215103159.

It can be divided in two parts, 201 and 5728, that added together give a square (5929 = 77²).

The spelling of 2015728 in words is "two million, fifteen thousand, seven hundred twenty-eight".