18338801 has 8 divisors (see below), whose sum is σ = 20911464. Its totient is φ = 15932160.

The previous prime is 18338783. The next prime is 18338809. The reversal of 18338801 is 10883381.

It can be written as a sum of positive squares in 4 ways, for example, as 1157776 + 17181025 = 1076^2 + 4145^2 .

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 18338801 - 2¹⁰ = 18337777 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18338809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41270 + ... + 41711.

It is an arithmetic number, because the mean of its divisors is an integer number (2613933).

Almost surely, 2^18338801 is an apocalyptic number.

It is an amenable number.

18338801 is a deficient number, since it is larger than the sum of its proper divisors (2572663).

18338801 is a wasteful number, since it uses less digits than its factorization.

18338801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83011.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 18338801 is about 4282.3826311996. The cubic root of 18338801 is about 263.7082070300.

The spelling of 18338801 in words is "eighteen million, three hundred thirty-eight thousand, eight hundred one".