342989818 has 8 divisors (see below), whose sum is σ = 524192148. Its totient is φ = 168259104.

The previous prime is 342989809. The next prime is 342989819. The reversal of 342989818 is 818989243.

It can be written as a sum of positive squares in 2 ways, for example, as 291623929 + 51365889 = 17077^2 + 7167^2 .

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

It is not an unprimeable number, because it can be changed into a prime (342989819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1617771 + ... + 1617982.

Almost surely, 2^342989818 is an apocalyptic number.

342989818 is a deficient number, since it is larger than the sum of its proper divisors (181202330).

342989818 is a wasteful number, since it uses less digits than its factorization.

342989818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3235808.

The product of its digits is 995328, while the sum is 52.

The square root of 342989818 is about 18519.9842872504. The cubic root of 342989818 is about 699.9930734008.

The spelling of 342989818 in words is "three hundred forty-two million, nine hundred eighty-nine thousand, eight hundred eighteen".