2636728 has 8 divisors (see below), whose sum is σ = 4943880. Its totient is φ = 1318360.

The previous prime is 2636719. The next prime is 2636759. The reversal of 2636728 is 8276362.

2636728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a d-powerful number, because it can be written as 2⁷ + 6³ + 3¹² + 6⁵ + 7 + 2²¹ + 8 .

It is a junction number, because it is equal to n+sod(n) for n = 2636693 and 2636702.

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, 164788 + ... + 164803.

It is an arithmetic number, because the mean of its divisors is an integer number (617985).

2^2636728 is an apocalyptic number.

It is an amenable number.

2636728 is a deficient number, since it is larger than the sum of its proper divisors (2307152).

2636728 is a wasteful number, since it uses less digits than its factorization.

2636728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329597 (or 329593 counting only the distinct ones).

The product of its digits is 24192, while the sum is 34.

The square root of 2636728 is about 1623.8004803547. The cubic root of 2636728 is about 138.1513427504.

It can be divided in two parts, 2636 and 728, that added together give a square (3364 = 58²).

The spelling of 2636728 in words is "two million, six hundred thirty-six thousand, seven hundred twenty-eight".