1742005 has 4 divisors (see below), whose sum is σ = 2090412. Its totient is φ = 1393600.

The previous prime is 1741979. The next prime is 1742017. The reversal of 1742005 is 5002471.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 285156 + 1456849 = 534^2 + 1207^2 .

It is not a de Polignac number, because 1742005 - 2⁷ = 1741877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 174196 + ... + 174205.

It is an arithmetic number, because the mean of its divisors is an integer number (522603).

2^1742005 is an apocalyptic number.

It is an amenable number.

1742005 is a deficient number, since it is larger than the sum of its proper divisors (348407).

1742005 is an equidigital number, since it uses as much as digits as its factorization.

1742005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348406.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 1742005 is about 1319.8503703072. The cubic root of 1742005 is about 120.3233179119.

Adding to 1742005 its reverse (5002471), we get a palindrome (6744476).

The spelling of 1742005 in words is "one million, seven hundred forty-two thousand, five".