1742474989 has 2 divisors, whose sum is σ = 1742474990. Its totient is φ = 1742474988.

The previous prime is 1742474983. The next prime is 1742475017. The reversal of 1742474989 is 9894742471.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1736388900 + 6086089 = 41670^2 + 2467^2 .

It is a cyclic number.

It is not a de Polignac number, because 1742474989 - 2²⁵ = 1708920557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1742474983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 871237494 + 871237495.

It is an arithmetic number, because the mean of its divisors is an integer number (871237495).

Almost surely, 2^1742474989 is an apocalyptic number.

It is an amenable number.

1742474989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1742474989 is an equidigital number, since it uses as much as digits as its factorization.

1742474989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4064256, while the sum is 55.

The square root of 1742474989 is about 41742.9633471319. The cubic root of 1742474989 is about 1203.3413792498.

The spelling of 1742474989 in words is "one billion, seven hundred forty-two million, four hundred seventy-four thousand, nine hundred eighty-nine".