214945928 has 8 divisors (see below), whose sum is σ = 403023630. Its totient is φ = 107472960.

The previous prime is 214945921. The next prime is 214945937. The reversal of 214945928 is 829549412.

It can be written as a sum of positive squares in only one way, i.e., 119727364 + 95218564 = 10942^2 + 9758^2 .

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

It is not an unprimeable number, because it can be changed into a prime (214945921) 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 as a sum of consecutive naturals, namely, 13434113 + ... + 13434128.

Almost surely, 2^214945928 is an apocalyptic number.

It is an amenable number.

214945928 is a deficient number, since it is larger than the sum of its proper divisors (188077702).

214945928 is a wasteful number, since it uses less digits than its factorization.

214945928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26868247 (or 26868243 counting only the distinct ones).

The product of its digits is 207360, while the sum is 44.

The square root of 214945928 is about 14661.0343427740. The cubic root of 214945928 is about 599.0224154867.

The spelling of 214945928 in words is "two hundred fourteen million, nine hundred forty-five thousand, nine hundred twenty-eight".