2118342 has 8 divisors (see below), whose sum is σ = 4236696. Its totient is φ = 706112.

The previous prime is 2118331. The next prime is 2118343. The reversal of 2118342 is 2438112.

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

2118342 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2118343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176523 + ... + 176534.

It is an arithmetic number, because the mean of its divisors is an integer number (529587).

2^2118342 is an apocalyptic number.

2118342 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2118342 is a wasteful number, since it uses less digits than its factorization.

2118342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353062.

The product of its digits is 384, while the sum is 21.

The square root of 2118342 is about 1455.4525069545. The cubic root of 2118342 is about 128.4296677401.

The spelling of 2118342 in words is "two million, one hundred eighteen thousand, three hundred forty-two".