2722439329 has 3 divisors (see below), whose sum is σ = 2722491507. Its totient is φ = 2722387152.

The previous prime is 2722439309. The next prime is 2722439359. The reversal of 2722439329 is 9239342272.

The square root of 2722439329 is 52177.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 2608225 + 2719831104 = 1615^2 + 52152^2 .

It is not a de Polignac number, because 2722439329 - 2¹¹ = 2722437281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2722439309) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 26089 + ... + 78265.

It is an arithmetic number, because the mean of its divisors is an integer number (907497169).

Almost surely, 2^2722439329 is an apocalyptic number.

2722439329 is the 52177-th square number.

2722439329 is the 26089-th centered octagonal number.

It is an amenable number.

2722439329 is a deficient number, since it is larger than the sum of its proper divisors (52178).

2722439329 is an frugal number, since it uses more digits than its factorization.

2722439329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104354 (or 52177 counting only the distinct ones).

The product of its digits is 326592, while the sum is 43.

The cubic root of 2722439329 is about 1396.3235733019.

The spelling of 2722439329 in words is "two billion, seven hundred twenty-two million, four hundred thirty-nine thousand, three hundred twenty-nine".