222748439 has 2 divisors, whose sum is σ = 222748440. Its totient is φ = 222748438.

The previous prime is 222748429. The next prime is 222748459. The reversal of 222748439 is 934847222.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222748439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222748396 and 222748405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222748429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111374219 + 111374220.

It is an arithmetic number, because the mean of its divisors is an integer number (111374220).

Almost surely, 2^222748439 is an apocalyptic number.

222748439 is a deficient number, since it is larger than the sum of its proper divisors (1).

222748439 is an equidigital number, since it uses as much as digits as its factorization.

222748439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 41.

The square root of 222748439 is about 14924.7592610400. The cubic root of 222748439 is about 606.1845870685.

The spelling of 222748439 in words is "two hundred twenty-two million, seven hundred forty-eight thousand, four hundred thirty-nine".