742219 has 2 divisors, whose sum is σ = 742220. Its totient is φ = 742218.

The previous prime is 742213. The next prime is 742229. The reversal of 742219 is 912247.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 742219 - 2³ = 742211 is a prime.

It is a super-2 number, since 2×742219² = 1101778087922, which contains 22 as substring.

742219 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 742193 and 742202.

It is not a weakly prime, because it can be changed into another prime (742211) 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, 371109 + 371110.

It is an arithmetic number, because the mean of its divisors is an integer number (371110).

2⁷⁴²²¹⁹ is an apocalyptic number.

742219 is a deficient number, since it is larger than the sum of its proper divisors (1).

742219 is an equidigital number, since it uses as much as digits as its factorization.

742219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1008, while the sum is 25.

The square root of 742219 is about 861.5213288132. The cubic root of 742219 is about 90.5407364199.

It can be divided in two parts, 742 and 219, that added together give a square (961 = 31²).

The spelling of 742219 in words is "seven hundred forty-two thousand, two hundred nineteen".