2146047728 has 20 divisors (see below), whose sum is σ = 4535964888. Its totient is φ = 975476160.

The previous prime is 2146047727. The next prime is 2146047733. The reversal of 2146047728 is 8277406412.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2146047727) 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 3 ways as a sum of consecutive naturals, for example, 6096551 + ... + 6096902.

Almost surely, 2^2146047728 is an apocalyptic number.

It is an amenable number.

2146047728 is an abundant number, since it is smaller than the sum of its proper divisors (2389917160).

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

2146047728 is a wasteful number, since it uses less digits than its factorization.

2146047728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12193472 (or 12193466 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 41.

The square root of 2146047728 is about 46325.4544284241. The cubic root of 2146047728 is about 1289.8715349908.

The spelling of 2146047728 in words is "two billion, one hundred forty-six million, forty-seven thousand, seven hundred twenty-eight".