1189342 has 16 divisors (see below), whose sum is σ = 2224512. Its totient is φ = 463320.

The previous prime is 1189339. The next prime is 1189361. The reversal of 1189342 is 2439811.

It is a happy number.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 1189342.

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 7 ways as a sum of consecutive naturals, for example, 3708 + ... + 4015.

It is an arithmetic number, because the mean of its divisors is an integer number (139032).

2^1189342 is an apocalyptic number.

1189342 is a deficient number, since it is larger than the sum of its proper divisors (1035170).

1189342 is a wasteful number, since it uses less digits than its factorization.

1189342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7743.

The product of its digits is 1728, while the sum is 28.

The square root of 1189342 is about 1090.5695759556. The cubic root of 1189342 is about 105.9503149135.

It can be divided in two parts, 11893 and 42, that added together give a triangular number (11935 = T₁₅₄).

The spelling of 1189342 in words is "one million, one hundred eighty-nine thousand, three hundred forty-two".