218899941 has 8 divisors (see below), whose sum is σ = 314317920. Its totient is φ = 134707632.

The previous prime is 218899913. The next prime is 218899949. The reversal of 218899941 is 149998812.

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

It is not a de Polignac number, because 218899941 - 2⁵ = 218899909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218899949) 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 7 ways as a sum of consecutive naturals, for example, 2806371 + ... + 2806448.

It is an arithmetic number, because the mean of its divisors is an integer number (39289740).

Almost surely, 2^218899941 is an apocalyptic number.

It is an amenable number.

218899941 is a deficient number, since it is larger than the sum of its proper divisors (95417979).

218899941 is a wasteful number, since it uses less digits than its factorization.

218899941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5612835.

The product of its digits is 373248, while the sum is 51.

The square root of 218899941 is about 14795.2675203931. The cubic root of 218899941 is about 602.6732028454.

The spelling of 218899941 in words is "two hundred eighteen million, eight hundred ninety-nine thousand, nine hundred forty-one".