2650345728 has 144 divisors (see below), whose sum is σ = 7362324480. Its totient is φ = 845365248.

The previous prime is 2650345727. The next prime is 2650345783. The reversal of 2650345728 is 8275430562.

It is a self number, because there is not a number n which added to its sum of digits gives 2650345728.

It is not an unprimeable number, because it can be changed into a prime (2650345727) 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 15 ways as a sum of consecutive naturals, for example, 2828076 + ... + 2829012.

Almost surely, 2^2650345728 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 2650345728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3681162240).

2650345728 is an abundant number, since it is smaller than the sum of its proper divisors (4711978752).

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

2650345728 is a wasteful number, since it uses less digits than its factorization.

2650345728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112 (or 1098 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 42.

The square root of 2650345728 is about 51481.5086026041. The cubic root of 2650345728 is about 1383.8876806395.

The spelling of 2650345728 in words is "two billion, six hundred fifty million, three hundred forty-five thousand, seven hundred twenty-eight".