244066644 has 18 divisors (see below), whose sum is σ = 616946330. Its totient is φ = 81355536.

The previous prime is 244066633. The next prime is 244066651. The reversal of 244066644 is 446660442.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 207705744 + 36360900 = 14412^2 + 6030^2 .

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

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: 6779629 = 244066644 / (2 + 4 + 4 + 0 + 6 + 6 + 6 + 4 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 244066599 and 244066608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3389779 + ... + 3389850.

Almost surely, 2^244066644 is an apocalyptic number.

It is an amenable number.

244066644 is an abundant number, since it is smaller than the sum of its proper divisors (372879686).

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

244066644 is a wasteful number, since it uses less digits than its factorization.

244066644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6779639 (or 6779634 counting only the distinct ones).

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

The square root of 244066644 is about 15622.6324286274. The cubic root of 244066644 is about 624.9368631689.

The spelling of 244066644 in words is "two hundred forty-four million, sixty-six thousand, six hundred forty-four".