4422724381 has 2 divisors, whose sum is σ = 4422724382. Its totient is φ = 4422724380.

The previous prime is 4422724357. The next prime is 4422724433. The reversal of 4422724381 is 1834272244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4417729156 + 4995225 = 66466^2 + 2235^2 .

It is a cyclic number.

It is not a de Polignac number, because 4422724381 - 2⁷ = 4422724253 is a prime.

It is a super-2 number, since 2×4422724381² = 39120981900583666322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4422724381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4422725381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2211362190 + 2211362191.

It is an arithmetic number, because the mean of its divisors is an integer number (2211362191).

Almost surely, 2^4422724381 is an apocalyptic number.

It is an amenable number.

4422724381 is a deficient number, since it is larger than the sum of its proper divisors (1).

4422724381 is an equidigital number, since it uses as much as digits as its factorization.

4422724381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86016, while the sum is 37.

The square root of 4422724381 is about 66503.5666787880. The cubic root of 4422724381 is about 1641.4586938801.

The spelling of 4422724381 in words is "four billion, four hundred twenty-two million, seven hundred twenty-four thousand, three hundred eighty-one".