2228562720 has 432 divisors, whose sum is σ = 8334772992. Its totient is φ = 561738240.

The previous prime is 2228562703. The next prime is 2228562731. The reversal of 2228562720 is 272658222.

2228562720 is a `hidden beast` number, since 2 + 2 + 2 + 8 + 5 + 627 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (432).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 51827019 + ... + 51827061.

It is an arithmetic number, because the mean of its divisors is an integer number (19293456).

Almost surely, 2^2228562720 is an apocalyptic number.

2228562720 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 2228562720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4167386496).

2228562720 is an abundant number, since it is smaller than the sum of its proper divisors (6106210272).

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

2228562720 is an equidigital number, since it uses as much as digits as its factorization.

2228562720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 2228562720 is about 47207.6553114005. The cubic root of 2228562720 is about 1306.1958123474.

The spelling of 2228562720 in words is "two billion, two hundred twenty-eight million, five hundred sixty-two thousand, seven hundred twenty".