742018237 has 2 divisors, whose sum is σ = 742018238. Its totient is φ = 742018236.

The previous prime is 742018141. The next prime is 742018259. The reversal of 742018237 is 732810247.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 619561881 + 122456356 = 24891^2 + 11066^2 .

It is a cyclic number.

It is not a de Polignac number, because 742018237 - 2¹¹ = 742016189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (742018297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371009118 + 371009119.

It is an arithmetic number, because the mean of its divisors is an integer number (371009119).

Almost surely, 2^742018237 is an apocalyptic number.

It is an amenable number.

742018237 is a deficient number, since it is larger than the sum of its proper divisors (1).

742018237 is an equidigital number, since it uses as much as digits as its factorization.

742018237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 742018237 is about 27240.0116923617. The cubic root of 742018237 is about 905.3257222175.

The spelling of 742018237 in words is "seven hundred forty-two million, eighteen thousand, two hundred thirty-seven".