18423361 has 8 divisors (see below), whose sum is σ = 20160000. Its totient is φ = 16697040.

The previous prime is 18423341. The next prime is 18423421. The reversal of 18423361 is 16332481.

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 18423361 - 2¹³ = 18415169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18423311) 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, 1440 + ... + 6238.

It is an arithmetic number, because the mean of its divisors is an integer number (2520000).

Almost surely, 2^18423361 is an apocalyptic number.

18423361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

18423361 is a deficient number, since it is larger than the sum of its proper divisors (1736639).

18423361 is a wasteful number, since it uses less digits than its factorization.

18423361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5159.

The product of its digits is 3456, while the sum is 28.

The square root of 18423361 is about 4292.2442847536. The cubic root of 18423361 is about 264.1129041488.

The spelling of 18423361 in words is "eighteen million, four hundred twenty-three thousand, three hundred sixty-one".