2220444600 has 192 divisors, whose sum is σ = 7585764480. Its totient is φ = 532800000.

The previous prime is 2220444599. The next prime is 2220444601. The reversal of 2220444600 is 64440222.

It is an interprime number because it is at equal distance from previous prime (2220444599) and next prime (2220444601).

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220444601) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 664935 + ... + 668265.

It is an arithmetic number, because the mean of its divisors is an integer number (39509190).

Almost surely, 2^2220444600 is an apocalyptic number.

2220444600 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 2220444600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3792882240).

2220444600 is an abundant number, since it is smaller than the sum of its proper divisors (5365319880).

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

2220444600 is a wasteful number, since it uses less digits than its factorization.

2220444600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3462 (or 3453 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 2220444600 is about 47121.5937761023. The cubic root of 2220444600 is about 1304.6078297819.

Adding to 2220444600 its reverse (64440222), we get a palindrome (2284884822).

The spelling of 2220444600 in words is "two billion, two hundred twenty million, four hundred forty-four thousand, six hundred".