244666644 has 48 divisors (see below), whose sum is σ = 587915328. Its totient is φ = 79135488.

The previous prime is 244666619. The next prime is 244666651. The reversal of 244666644 is 446666442.

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

It is a junction number, because it is equal to n+sod(n) for n = 244666596 and 244666605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 285064 + ... + 285920.

It is an arithmetic number, because the mean of its divisors is an integer number (12248236).

Almost surely, 2^244666644 is an apocalyptic number.

It is an amenable number.

244666644 is an abundant number, since it is smaller than the sum of its proper divisors (343248684).

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

244666644 is a wasteful number, since it uses less digits than its factorization.

244666644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1544 (or 1542 counting only the distinct ones).

The product of its digits is 663552, while the sum is 42.

The square root of 244666644 is about 15641.8235509802. The cubic root of 244666644 is about 625.4485475578.

The spelling of 244666644 in words is "two hundred forty-four million, six hundred sixty-six thousand, six hundred forty-four".