2222305440 has 48 divisors (see below), whose sum is σ = 7000263648. Its totient is φ = 592614656.

The previous prime is 2222305439. The next prime is 2222305441. The reversal of 2222305440 is 445032222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2222305439) and next prime (2222305441).

It is a tau number, because it is divible by the number of its divisors (48).

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

It is a self number, because there is not a number n which added to its sum of digits gives 2222305440.

It is not an unprimeable number, because it can be changed into a prime (2222305441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2314422 + ... + 2315381.

It is an arithmetic number, because the mean of its divisors is an integer number (145838826).

Almost surely, 2^2222305440 is an apocalyptic number.

2222305440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2222305440 is an abundant number, since it is smaller than the sum of its proper divisors (4777958208).

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

2222305440 is a wasteful number, since it uses less digits than its factorization.

2222305440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4629821 (or 4629813 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 2222305440 is about 47141.3347286646. The cubic root of 2222305440 is about 1304.9721695156.

Adding to 2222305440 its reverse (445032222), we get a palindrome (2667337662).

The spelling of 2222305440 in words is "two billion, two hundred twenty-two million, three hundred five thousand, four hundred forty".