742781419 has 2 divisors, whose sum is σ = 742781420. Its totient is φ = 742781418.

The previous prime is 742781407. The next prime is 742781449. The reversal of 742781419 is 914187247.

It is a weak prime.

It is an emirp because it is prime and its reverse (914187247) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 742781419 - 2²³ = 734392811 is a prime.

It is a super-2 number, since 2×742781419² = 1103448472823307122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (742781449) 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, 371390709 + 371390710.

It is an arithmetic number, because the mean of its divisors is an integer number (371390710).

Almost surely, 2^742781419 is an apocalyptic number.

742781419 is a deficient number, since it is larger than the sum of its proper divisors (1).

742781419 is an equidigital number, since it uses as much as digits as its factorization.

742781419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112896, while the sum is 43.

The square root of 742781419 is about 27254.0165663705. The cubic root of 742781419 is about 905.6359983077.

The spelling of 742781419 in words is "seven hundred forty-two million, seven hundred eighty-one thousand, four hundred nineteen".