2126032728 has 64 divisors (see below), whose sum is σ = 5533678560. Its totient is φ = 680057856.

The previous prime is 2126032723. The next prime is 2126032747. The reversal of 2126032728 is 8272306212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2126032723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48426 + ... + 81222.

Almost surely, 2^2126032728 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 2126032728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2766839280).

2126032728 is an abundant number, since it is smaller than the sum of its proper divisors (3407645832).

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

2126032728 is a wasteful number, since it uses less digits than its factorization.

2126032728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32916 (or 32912 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 2126032728 is about 46108.9224337329. The cubic root of 2126032728 is about 1285.8490309714.

The spelling of 2126032728 in words is "two billion, one hundred twenty-six million, thirty-two thousand, seven hundred twenty-eight".