742084381 has 2 divisors, whose sum is σ = 742084382. Its totient is φ = 742084380.

The previous prime is 742084339. The next prime is 742084433. The reversal of 742084381 is 183480247.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 481100356 + 260984025 = 21934^2 + 16155^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-742084381 is a prime.

It is a super-2 number, since 2×742084381² = 1101378457048306322, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 742084381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (742084181) 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, 371042190 + 371042191.

It is an arithmetic number, because the mean of its divisors is an integer number (371042191).

Almost surely, 2^742084381 is an apocalyptic number.

It is an amenable number.

742084381 is a deficient number, since it is larger than the sum of its proper divisors (1).

742084381 is an equidigital number, since it uses as much as digits as its factorization.

742084381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 742084381 is about 27241.2257617017. The cubic root of 742084381 is about 905.3526218643.

The spelling of 742084381 in words is "seven hundred forty-two million, eighty-four thousand, three hundred eighty-one".