1742489 has 12 divisors (see below), whose sum is σ = 2076624. Its totient is φ = 1457064.

The previous prime is 1742473. The next prime is 1742497. The reversal of 1742489 is 9842471.

It is not a de Polignac number, because 1742489 - 2⁴ = 1742473 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1742989) 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 in 11 ways as a sum of consecutive naturals, for example, 1694 + ... + 2520.

It is an arithmetic number, because the mean of its divisors is an integer number (173052).

2^1742489 is an apocalyptic number.

It is an amenable number.

1742489 is a deficient number, since it is larger than the sum of its proper divisors (334135).

1742489 is an equidigital number, since it uses as much as digits as its factorization.

1742489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884 (or 877 counting only the distinct ones).

The product of its digits is 16128, while the sum is 35.

The square root of 1742489 is about 1320.0337116907. The cubic root of 1742489 is about 120.3344604542.

The spelling of 1742489 in words is "one million, seven hundred forty-two thousand, four hundred eighty-nine".