244378739 has 6 divisors (see below), whose sum is σ = 268614780. Its totient is φ = 222162380.

The previous prime is 244378733. The next prime is 244378751. The reversal of 244378739 is 937873442.

It is a de Polignac number, because none of the positive numbers 2^k-244378739 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 244378693 and 244378702.

It is not an unprimeable number, because it can be changed into a prime (244378733) 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, 1009709 + ... + 1009950.

It is an arithmetic number, because the mean of its divisors is an integer number (44769130).

Almost surely, 2^244378739 is an apocalyptic number.

244378739 is a deficient number, since it is larger than the sum of its proper divisors (24236041).

244378739 is a wasteful number, since it uses less digits than its factorization.

244378739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2019681 (or 2019670 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 47.

The square root of 244378739 is about 15632.6177910163. The cubic root of 244378739 is about 625.2031245908.

The spelling of 244378739 in words is "two hundred forty-four million, three hundred seventy-eight thousand, seven hundred thirty-nine".