1158684842 has 16 divisors (see below), whose sum is σ = 1987016640. Its totient is φ = 496404288.

The previous prime is 1158684841. The next prime is 1158684851. The reversal of 1158684842 is 2484868511.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1158684841) 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, 31634 + ... + 57602.

It is an arithmetic number, because the mean of its divisors is an integer number (124188540).

Almost surely, 2^1158684842 is an apocalyptic number.

1158684842 is a deficient number, since it is larger than the sum of its proper divisors (828331798).

1158684842 is a wasteful number, since it uses less digits than its factorization.

1158684842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29165.

The product of its digits is 491520, while the sum is 47.

The square root of 1158684842 is about 34039.4600720987. The cubic root of 1158684842 is about 1050.3203382388.

The spelling of 1158684842 in words is "one billion, one hundred fifty-eight million, six hundred eighty-four thousand, eight hundred forty-two".