222738293 has 2 divisors, whose sum is σ = 222738294. Its totient is φ = 222738292.

The previous prime is 222738283. The next prime is 222738331. The reversal of 222738293 is 392837222.

It is an a-pointer prime, because the next prime (222738331) can be obtained adding 222738293 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 216148804 + 6589489 = 14702^2 + 2567^2 .

It is a cyclic number.

It is not a de Polignac number, because 222738293 - 2⁸ = 222738037 is a prime.

It is a super-2 number, since 2×222738293² = 99224694337107698, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222738203) 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, 111369146 + 111369147.

It is an arithmetic number, because the mean of its divisors is an integer number (111369147).

Almost surely, 2^222738293 is an apocalyptic number.

It is an amenable number.

222738293 is a deficient number, since it is larger than the sum of its proper divisors (1).

222738293 is an equidigital number, since it uses as much as digits as its factorization.

222738293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 38.

The square root of 222738293 is about 14924.4193521892. The cubic root of 222738293 is about 606.1753831998.

The spelling of 222738293 in words is "two hundred twenty-two million, seven hundred thirty-eight thousand, two hundred ninety-three".