214518328 has 8 divisors (see below), whose sum is σ = 402221880. Its totient is φ = 107259160.

The previous prime is 214518319. The next prime is 214518331. The reversal of 214518328 is 823815412.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×214518328² = 92036226095831168, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 214518293 and 214518302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13407388 + ... + 13407403.

It is an arithmetic number, because the mean of its divisors is an integer number (50277735).

Almost surely, 2^214518328 is an apocalyptic number.

It is an amenable number.

214518328 is a deficient number, since it is larger than the sum of its proper divisors (187703552).

214518328 is a wasteful number, since it uses less digits than its factorization.

214518328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26814797 (or 26814793 counting only the distinct ones).

The product of its digits is 15360, while the sum is 34.

The square root of 214518328 is about 14646.4442101146. Note that the first 3 decimals coincide. The cubic root of 214518328 is about 598.6249325380.

The spelling of 214518328 in words is "two hundred fourteen million, five hundred eighteen thousand, three hundred twenty-eight".