2226447720 has 192 divisors, whose sum is σ = 8319093120. Its totient is φ = 505861632.

The previous prime is 2226447719. The next prime is 2226447781. The reversal of 2226447720 is 277446222.

2226447720 is a `hidden beast` number, since 2 + 2 + 2 + 644 + 7 + 7 + 2 + 0 = 666.

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 47 ways as a sum of consecutive naturals, for example, 433407 + ... + 438513.

It is an arithmetic number, because the mean of its divisors is an integer number (43328610).

Almost surely, 2^2226447720 is an apocalyptic number.

2226447720 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 2226447720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4159546560).

2226447720 is an abundant number, since it is smaller than the sum of its proper divisors (6092645400).

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

2226447720 is a wasteful number, since it uses less digits than its factorization.

2226447720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5304 (or 5297 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 36.

The square root of 2226447720 is about 47185.2489661759. The cubic root of 2226447720 is about 1305.7824699239.

The spelling of 2226447720 in words is "two billion, two hundred twenty-six million, four hundred forty-seven thousand, seven hundred twenty".