2244222640 has 40 divisors (see below), whose sum is σ = 5692166928. Its totient is φ = 816080640.

The previous prime is 2244222637. The next prime is 2244222661. The reversal of 2244222640 is 462224422.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 2244222599 and 2244222608.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1274247 + ... + 1276006.

Almost surely, 2^2244222640 is an apocalyptic number.

2244222640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2244222640 is an abundant number, since it is smaller than the sum of its proper divisors (3447944288).

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

2244222640 is a wasteful number, since it uses less digits than its factorization.

2244222640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2550277 (or 2550271 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

The square root of 2244222640 is about 47373.2270380644. The cubic root of 2244222640 is about 1309.2481827155.

The spelling of 2244222640 in words is "two billion, two hundred forty-four million, two hundred twenty-two thousand, six hundred forty".