2728253052 has 72 divisors (see below), whose sum is σ = 7895343456. Its totient is φ = 778143744.

The previous prime is 2728252987. The next prime is 2728253063. The reversal of 2728253052 is 2503528272.

It is a happy number.

2728253052 is a `hidden beast` number, since 2 + 72 + 8 + 2 + 530 + 52 = 666.

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 = 2728252998 and 2728253016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 140308 + ... + 158564.

It is an arithmetic number, because the mean of its divisors is an integer number (109657548).

Almost surely, 2^2728253052 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 2728253052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3947671728).

2728253052 is an abundant number, since it is smaller than the sum of its proper divisors (5167090404).

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

2728253052 is a wasteful number, since it uses less digits than its factorization.

2728253052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18867 (or 18862 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 2728253052 is about 52232.6818380983. The cubic root of 2728253052 is about 1397.3168083921.

The spelling of 2728253052 in words is "two billion, seven hundred twenty-eight million, two hundred fifty-three thousand, fifty-two".