18342344 has 8 divisors (see below), whose sum is σ = 34391910. Its totient is φ = 9171168.

The previous prime is 18342341. The next prime is 18342349. The reversal of 18342344 is 44324381.

It can be written as a sum of positive squares in only one way, i.e., 17322244 + 1020100 = 4162^2 + 1010^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (18342341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1146389 + ... + 1146404.

Almost surely, 2^18342344 is an apocalyptic number.

It is an amenable number.

18342344 is a deficient number, since it is larger than the sum of its proper divisors (16049566).

18342344 is a wasteful number, since it uses less digits than its factorization.

18342344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2292799 (or 2292795 counting only the distinct ones).

The product of its digits is 9216, while the sum is 29.

The square root of 18342344 is about 4282.7962828040. The cubic root of 18342344 is about 263.7251884748.

The spelling of 18342344 in words is "eighteen million, three hundred forty-two thousand, three hundred forty-four".