244434139 has 6 divisors (see below), whose sum is σ = 247219460. Its totient is φ = 241679856.

The previous prime is 244434103. The next prime is 244434161. The reversal of 244434139 is 931434442.

It is not a de Polignac number, because 244434139 - 2¹¹ = 244432091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (244434439) 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, 7509 + ... + 23350.

Almost surely, 2^244434139 is an apocalyptic number.

244434139 is a deficient number, since it is larger than the sum of its proper divisors (2785321).

244434139 is an frugal number, since it uses more digits than its factorization.

244434139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31037 (or 30948 counting only the distinct ones).

The product of its digits is 41472, while the sum is 34.

The square root of 244434139 is about 15634.3896267171. The cubic root of 244434139 is about 625.2503649744.

It can be divided in two parts, 24443 and 4139, that added together give a palindrome (28582).

The spelling of 244434139 in words is "two hundred forty-four million, four hundred thirty-four thousand, one hundred thirty-nine".