2222487720 has 224 divisors, whose sum is σ = 7554816000. Its totient is φ = 588145536.

The previous prime is 2222487719. The next prime is 2222487721. The reversal of 2222487720 is 277842222.

It is an interprime number because it is at equal distance from previous prime (2222487719) and next prime (2222487721).

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

It is not an unprimeable number, because it can be changed into a prime (2222487721) 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 55 ways as a sum of consecutive naturals, for example, 5802649 + ... + 5803031.

Almost surely, 2^2222487720 is an apocalyptic number.

2222487720 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 2222487720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3777408000).

2222487720 is an abundant number, since it is smaller than the sum of its proper divisors (5332328280).

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

2222487720 is a wasteful number, since it uses less digits than its factorization.

2222487720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611 (or 592 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 36.

The square root of 2222487720 is about 47143.2680241835. The cubic root of 2222487720 is about 1305.0078477530.

The spelling of 2222487720 in words is "two billion, two hundred twenty-two million, four hundred eighty-seven thousand, seven hundred twenty".