18376345 has 8 divisors (see below), whose sum is σ = 23747976. Its totient is φ = 13570176.

The previous prime is 18376339. The next prime is 18376361. The reversal of 18376345 is 54367381.

It can be written as a sum of positive squares in 4 ways, for example, as 870489 + 17505856 = 933^2 + 4184^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 18376345 - 2⁵ = 18376313 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 141292 + ... + 141421.

It is an arithmetic number, because the mean of its divisors is an integer number (2968497).

Almost surely, 2^18376345 is an apocalyptic number.

It is an amenable number.

18376345 is a deficient number, since it is larger than the sum of its proper divisors (5371631).

18376345 is a wasteful number, since it uses less digits than its factorization.

18376345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282731.

The product of its digits is 60480, while the sum is 37.

The square root of 18376345 is about 4286.7639309857. The cubic root of 18376345 is about 263.8880427099. Note that the first 3 decimals are identical.

It can be divided in two parts, 18376 and 345, that added together give a triangular number (18721 = T₁₉₃).

The spelling of 18376345 in words is "eighteen million, three hundred seventy-six thousand, three hundred forty-five".