2722256439 has 32 divisors (see below), whose sum is σ = 4201781760. Its totient is φ = 1535542272.

The previous prime is 2722256429. The next prime is 2722256491. The reversal of 2722256439 is 9346522272.

It is not a de Polignac number, because 2722256439 - 2⁷ = 2722256311 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2722256439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2722256429) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2098239 + ... + 2099535.

It is an arithmetic number, because the mean of its divisors is an integer number (131305680).

Almost surely, 2^2722256439 is an apocalyptic number.

2722256439 is a deficient number, since it is larger than the sum of its proper divisors (1479525321).

2722256439 is a wasteful number, since it uses less digits than its factorization.

2722256439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2519.

The product of its digits is 362880, while the sum is 42.

The square root of 2722256439 is about 52175.2473784265. The cubic root of 2722256439 is about 1396.2923048565.

The spelling of 2722256439 in words is "two billion, seven hundred twenty-two million, two hundred fifty-six thousand, four hundred thirty-nine".