18426343 has 16 divisors (see below), whose sum is σ = 20547072. Its totient is φ = 16416000.

The previous prime is 18426337. The next prime is 18426347. The reversal of 18426343 is 34362481.

It is a cyclic number.

It is not a de Polignac number, because 18426343 - 2⁵ = 18426311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18426347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96378 + ... + 96568.

It is an arithmetic number, because the mean of its divisors is an integer number (1284192).

Almost surely, 2^18426343 is an apocalyptic number.

18426343 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

18426343 is a deficient number, since it is larger than the sum of its proper divisors (2120729).

18426343 is a wasteful number, since it uses less digits than its factorization.

18426343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426.

The product of its digits is 13824, while the sum is 31.

The square root of 18426343 is about 4292.5916414213. The cubic root of 18426343 is about 264.1271531267.

It can be divided in two parts, 18426 and 343, that added together give a square (18769 = 137²).

The spelling of 18426343 in words is "eighteen million, four hundred twenty-six thousand, three hundred forty-three".