214867668 has 12 divisors (see below), whose sum is σ = 501357920. Its totient is φ = 71622552.

The previous prime is 214867643. The next prime is 214867669. The reversal of 214867668 is 866768412.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×214867668² = 92336229503516448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214867669) 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, 8952808 + ... + 8952831.

Almost surely, 2^214867668 is an apocalyptic number.

It is an amenable number.

214867668 is an abundant number, since it is smaller than the sum of its proper divisors (286490252).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

214867668 is a wasteful number, since it uses less digits than its factorization.

214867668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17905646 (or 17905644 counting only the distinct ones).

The product of its digits is 774144, while the sum is 48.

The square root of 214867668 is about 14658.3651202991. The cubic root of 214867668 is about 598.9497069915.

The spelling of 214867668 in words is "two hundred fourteen million, eight hundred sixty-seven thousand, six hundred sixty-eight".