244439993 has 16 divisors (see below), whose sum is σ = 290564736. Its totient is φ = 201277440.

The previous prime is 244439981. The next prime is 244439999. The reversal of 244439993 is 399934442.

It is a happy number.

It is not a de Polignac number, because 244439993 - 2¹² = 244435897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (244439999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11705 + ... + 25017.

It is an arithmetic number, because the mean of its divisors is an integer number (18160296).

Almost surely, 2^244439993 is an apocalyptic number.

It is an amenable number.

244439993 is a deficient number, since it is larger than the sum of its proper divisors (46124743).

244439993 is a wasteful number, since it uses less digits than its factorization.

244439993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13424.

The product of its digits is 839808, while the sum is 47.

The square root of 244439993 is about 15634.5768410917. The cubic root of 244439993 is about 625.2553563481.

The spelling of 244439993 in words is "two hundred forty-four million, four hundred thirty-nine thousand, nine hundred ninety-three".