742189 has 8 divisors (see below), whose sum is σ = 853760. Its totient is φ = 632016.

The previous prime is 742153. The next prime is 742193. The reversal of 742189 is 981247.

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

It is not a de Polignac number, because 742189 - 2⁹ = 741677 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 742189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742199) 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 7 ways as a sum of consecutive naturals, for example, 1372 + ... + 1834.

It is an arithmetic number, because the mean of its divisors is an integer number (106720).

2⁷⁴²¹⁸⁹ is an apocalyptic number.

It is an amenable number.

742189 is a deficient number, since it is larger than the sum of its proper divisors (111571).

742189 is a wasteful number, since it uses less digits than its factorization.

742189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699.

The product of its digits is 4032, while the sum is 31.

The square root of 742189 is about 861.5039175767. The cubic root of 742189 is about 90.5395165380.

The spelling of 742189 in words is "seven hundred forty-two thousand, one hundred eighty-nine".