2438722739 has 6 divisors (see below), whose sum is σ = 2445775836. Its totient is φ = 2431689920.

The previous prime is 2438722679. The next prime is 2438722747. The reversal of 2438722739 is 9372278342.

It is not a de Polignac number, because 2438722739 - 2⁸ = 2438722483 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2438722693 and 2438722702.

It is not an unprimeable number, because it can be changed into a prime (2438722939) 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, 114824 + ... + 134394.

It is an arithmetic number, because the mean of its divisors is an integer number (407629306).

Almost surely, 2^2438722739 is an apocalyptic number.

2438722739 is a deficient number, since it is larger than the sum of its proper divisors (7053097).

2438722739 is an frugal number, since it uses more digits than its factorization.

2438722739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20277 (or 19924 counting only the distinct ones).

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

The square root of 2438722739 is about 49383.4257519666. The cubic root of 2438722739 is about 1346.0281500706.

The spelling of 2438722739 in words is "two billion, four hundred thirty-eight million, seven hundred twenty-two thousand, seven hundred thirty-nine".