218038814 has 8 divisors (see below), whose sum is σ = 373780848. Its totient is φ = 93445200.

The previous prime is 218038783. The next prime is 218038819. The reversal of 218038814 is 418830812.

218038814 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 (218038819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7787087 + ... + 7787114.

It is an arithmetic number, because the mean of its divisors is an integer number (46722606).

Almost surely, 2^218038814 is an apocalyptic number.

218038814 is a deficient number, since it is larger than the sum of its proper divisors (155742034).

218038814 is a wasteful number, since it uses less digits than its factorization.

218038814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15574210.

The product of its (nonzero) digits is 12288, while the sum is 35.

The square root of 218038814 is about 14766.1374096275. The cubic root of 218038814 is about 601.8818821027.

The spelling of 218038814 in words is "two hundred eighteen million, thirty-eight thousand, eight hundred fourteen".