2190728120 has 128 divisors (see below), whose sum is σ = 6278860800. Its totient is φ = 669689856.

The previous prime is 2190728117. The next prime is 2190728131. The reversal of 2190728120 is 218270912.

It is a happy number.

2190728120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78329 + ... + 102551.

It is an arithmetic number, because the mean of its divisors is an integer number (49053600).

Almost surely, 2^2190728120 is an apocalyptic number.

2190728120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2190728120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3139430400).

2190728120 is an abundant number, since it is smaller than the sum of its proper divisors (4088132680).

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

2190728120 is a wasteful number, since it uses less digits than its factorization.

2190728120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24277 (or 24273 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 2190728120 is about 46805.2146667441. The cubic root of 2190728120 is about 1298.7617637684.

The spelling of 2190728120 in words is "two billion, one hundred ninety million, seven hundred twenty-eight thousand, one hundred twenty".