1742420189 has 8 divisors (see below), whose sum is σ = 1762313760. Its totient is φ = 1722639856.

The previous prime is 1742420167. The next prime is 1742420201. The reversal of 1742420189 is 9810242471.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1742420189 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1742320189) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2834 + ... + 59100.

It is an arithmetic number, because the mean of its divisors is an integer number (220289220).

Almost surely, 2^1742420189 is an apocalyptic number.

It is an amenable number.

1742420189 is a deficient number, since it is larger than the sum of its proper divisors (19893571).

1742420189 is a wasteful number, since it uses less digits than its factorization.

1742420189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56619.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 1742420189 is about 41742.3069439148. The cubic root of 1742420189 is about 1203.3287642817.

The spelling of 1742420189 in words is "one billion, seven hundred forty-two million, four hundred twenty thousand, one hundred eighty-nine".