2601028728 has 24 divisors (see below), whose sum is σ = 7044453000. Its totient is φ = 867009552.

The previous prime is 2601028723. The next prime is 2601028733. The reversal of 2601028728 is 8278201062.

It is a happy number.

2601028728 is a `hidden beast` number, since 2 + 601 + 0 + 28 + 7 + 28 = 666.

It is an interprime number because it is at equal distance from previous prime (2601028723) and next prime (2601028733).

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2601028692 and 2601028701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2601028721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18062628 + ... + 18062771.

It is an arithmetic number, because the mean of its divisors is an integer number (293518875).

Almost surely, 2^2601028728 is an apocalyptic number.

It is an amenable number.

2601028728 is an abundant number, since it is smaller than the sum of its proper divisors (4443424272).

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

2601028728 is a wasteful number, since it uses less digits than its factorization.

2601028728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36125411 (or 36125404 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 2601028728 is about 51000.2816462811. The cubic root of 2601028728 is about 1375.2501985256.

The spelling of 2601028728 in words is "two billion, six hundred one million, twenty-eight thousand, seven hundred twenty-eight".