18326043 has 12 divisors (see below), whose sum is σ = 26570128. Its totient is φ = 12171600.

The previous prime is 18326027. The next prime is 18326071. The reversal of 18326043 is 34062381.

It is a happy number.

It is not a de Polignac number, because 18326043 - 2⁴ = 18326027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18325998 and 18326016.

It is not an unprimeable number, because it can be changed into a prime (18326083) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1183 + ... + 6168.

Almost surely, 2^18326043 is an apocalyptic number.

18326043 is a deficient number, since it is larger than the sum of its proper divisors (8244085).

18326043 is a wasteful number, since it uses less digits than its factorization.

18326043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7634 (or 7631 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 18326043 is about 4280.8927807176. The cubic root of 18326043 is about 263.6470403668.

It can be divided in two parts, 1832 and 6043, that added together give a triangular number (7875 = T₁₂₅).

The spelling of 18326043 in words is "eighteen million, three hundred twenty-six thousand, forty-three".