2222003644 has 24 divisors (see below), whose sum is σ = 4445063168. Its totient is φ = 952061040.

The previous prime is 2222003639. The next prime is 2222003677. The reversal of 2222003644 is 4463002222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171349 + ... + 183859.

Almost surely, 2^2222003644 is an apocalyptic number.

It is an amenable number.

2222003644 is an abundant number, since it is smaller than the sum of its proper divisors (2223059524).

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

2222003644 is a wasteful number, since it uses less digits than its factorization.

2222003644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18865 (or 18863 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 2222003644 is about 47138.1336499442. The cubic root of 2222003644 is about 1304.9130937463.

Adding to 2222003644 its reverse (4463002222), we get a palindrome (6685005866).

The spelling of 2222003644 in words is "two billion, two hundred twenty-two million, three thousand, six hundred forty-four".