1189870342 has 4 divisors (see below), whose sum is σ = 1784805516. Its totient is φ = 594935170.

The previous prime is 1189870301. The next prime is 1189870361. The reversal of 1189870342 is 2430789811.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 297467584 + ... + 297467587.

It is an arithmetic number, because the mean of its divisors is an integer number (446201379).

Almost surely, 2^1189870342 is an apocalyptic number.

1189870342 is a deficient number, since it is larger than the sum of its proper divisors (594935174).

1189870342 is an equidigital number, since it uses as much as digits as its factorization.

1189870342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594935173.

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 1189870342 is about 34494.4972713040. The cubic root of 1189870342 is about 1059.6600137834.

The spelling of 1189870342 in words is "one billion, one hundred eighty-nine million, eight hundred seventy thousand, three hundred forty-two".