218030423 has 8 divisors (see below), whose sum is σ = 248614128. Its totient is φ = 189419904.

The previous prime is 218030399. The next prime is 218030467. The reversal of 218030423 is 324030812.

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 218030423 - 2¹⁴ = 218014039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218030473) 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, 493061 + ... + 493502.

It is an arithmetic number, because the mean of its divisors is an integer number (31076766).

Almost surely, 2^218030423 is an apocalyptic number.

218030423 is a deficient number, since it is larger than the sum of its proper divisors (30583705).

218030423 is a wasteful number, since it uses less digits than its factorization.

218030423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986593.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 218030423 is about 14765.8532770714. The cubic root of 218030423 is about 601.8741610681.

The spelling of 218030423 in words is "two hundred eighteen million, thirty thousand, four hundred twenty-three".