2242066644 has 18 divisors (see below), whose sum is σ = 5667446330. Its totient is φ = 747355536.

The previous prime is 2242066643. The next prime is 2242066663. The reversal of 2242066644 is 4466602422.

It can be written as a sum of positive squares in only one way, i.e., 2128899600 + 113167044 = 46140^2 + 10638^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×2242066644² = 10053725672274845472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 62279629 = 2242066644 / (2 + 2 + 4 + 2 + 0 + 6 + 6 + 6 + 4 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 2242066599 and 2242066608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2242066643) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31139779 + ... + 31139850.

Almost surely, 2^2242066644 is an apocalyptic number.

It is an amenable number.

2242066644 is an abundant number, since it is smaller than the sum of its proper divisors (3425379686).

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

2242066644 is a wasteful number, since it uses less digits than its factorization.

2242066644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62279639 (or 62279634 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

The square root of 2242066644 is about 47350.4661434288. The cubic root of 2242066644 is about 1308.8287890542.

The spelling of 2242066644 in words is "two billion, two hundred forty-two million, sixty-six thousand, six hundred forty-four".