2210845728 has 192 divisors, whose sum is σ = 7219134720. Its totient is φ = 576847872.

The previous prime is 2210845723. The next prime is 2210845739. The reversal of 2210845728 is 8275480122.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (2210845723) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 846088 + ... + 848696.

It is an arithmetic number, because the mean of its divisors is an integer number (37599660).

Almost surely, 2^2210845728 is an apocalyptic number.

2210845728 is a gapful number since it is divisible by the number (28) 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 2210845728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3609567360).

2210845728 is an abundant number, since it is smaller than the sum of its proper divisors (5008288992).

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

2210845728 is a wasteful number, since it uses less digits than its factorization.

2210845728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2739 (or 2731 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 39.

The square root of 2210845728 is about 47019.6313043818. The cubic root of 2210845728 is about 1302.7251959877.

The spelling of 2210845728 in words is "two billion, two hundred ten million, eight hundred forty-five thousand, seven hundred twenty-eight".