818342 has 8 divisors (see below), whose sum is σ = 1402896. Its totient is φ = 350712.

The previous prime is 818341. The next prime is 818347. The reversal of 818342 is 243818.

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

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (818341) 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 3 ways as a sum of consecutive naturals, for example, 29213 + ... + 29240.

It is an arithmetic number, because the mean of its divisors is an integer number (175362).

2⁸¹⁸³⁴² is an apocalyptic number.

818342 is a deficient number, since it is larger than the sum of its proper divisors (584554).

818342 is a wasteful number, since it uses less digits than its factorization.

818342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58462.

The product of its digits is 1536, while the sum is 26.

The square root of 818342 is about 904.6225732315. The cubic root of 818342 is about 93.5358894508.

The spelling of 818342 in words is "eight hundred eighteen thousand, three hundred forty-two".