2243244636 has 36 divisors (see below), whose sum is σ = 5703216792. Its totient is φ = 743423904.

The previous prime is 2243244607. The next prime is 2243244649. The reversal of 2243244636 is 6364423422.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 2243244636.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 173866 + ... + 186321.

Almost surely, 2^2243244636 is an apocalyptic number.

It is an amenable number.

2243244636 is an abundant number, since it is smaller than the sum of its proper divisors (3459972156).

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

2243244636 is a wasteful number, since it uses less digits than its factorization.

2243244636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360370 (or 360365 counting only the distinct ones).

The product of its digits is 165888, while the sum is 36.

The square root of 2243244636 is about 47362.9035849788. The cubic root of 2243244636 is about 1309.0579704517.

The spelling of 2243244636 in words is "two billion, two hundred forty-three million, two hundred forty-four thousand, six hundred thirty-six".