214228666 has 8 divisors (see below), whose sum is σ = 328816224. Its totient is φ = 104623260.

The previous prime is 214228661. The next prime is 214228673. The reversal of 214228666 is 666822412.

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

It is a super-2 number, since 2×214228666² = 91787842672279112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (214228661) 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, 1245430 + ... + 1245601.

It is an arithmetic number, because the mean of its divisors is an integer number (41102028).

Almost surely, 2^214228666 is an apocalyptic number.

214228666 is a deficient number, since it is larger than the sum of its proper divisors (114587558).

214228666 is a wasteful number, since it uses less digits than its factorization.

214228666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2491076.

The product of its digits is 55296, while the sum is 37.

The square root of 214228666 is about 14636.5523946044. The cubic root of 214228666 is about 598.3553720429.

The spelling of 214228666 in words is "two hundred fourteen million, two hundred twenty-eight thousand, six hundred sixty-six".