742229 has 2 divisors, whose sum is σ = 742230. Its totient is φ = 742228.

The previous prime is 742219. The next prime is 742241. The reversal of 742229 is 922247.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 487204 + 255025 = 698^2 + 505^2 .

It is an emirp because it is prime and its reverse (922247) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 742229 - 2⁴ = 742213 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 742198 and 742207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (742219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371114 + 371115.

It is an arithmetic number, because the mean of its divisors is an integer number (371115).

2⁷⁴²²²⁹ is an apocalyptic number.

It is an amenable number.

742229 is a deficient number, since it is larger than the sum of its proper divisors (1).

742229 is an equidigital number, since it uses as much as digits as its factorization.

742229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 26.

The square root of 742229 is about 861.5271324805. The cubic root of 742229 is about 90.5411430399.

The spelling of 742229 in words is "seven hundred forty-two thousand, two hundred twenty-nine".