218453414 has 8 divisors (see below), whose sum is σ = 327875688. Its totient is φ = 109161520.

The previous prime is 218453413. The next prime is 218453423. The reversal of 218453414 is 414354812.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218453413) 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 3 ways as a sum of consecutive naturals, for example, 28292 + ... + 35175.

It is an arithmetic number, because the mean of its divisors is an integer number (40984461).

Almost surely, 2^218453414 is an apocalyptic number.

218453414 is a deficient number, since it is larger than the sum of its proper divisors (109422274).

218453414 is a wasteful number, since it uses less digits than its factorization.

218453414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65190.

The product of its digits is 15360, while the sum is 32.

The square root of 218453414 is about 14780.1696201363. The cubic root of 218453414 is about 602.2631326149.

The spelling of 218453414 in words is "two hundred eighteen million, four hundred fifty-three thousand, four hundred fourteen".