214857988 has 12 divisors (see below), whose sum is σ = 376951372. Its totient is φ = 107157600.

The previous prime is 214857983. The next prime is 214857991. The reversal of 214857988 is 889758412.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 144432324 + 70425664 = 12018^2 + 8392^2 .

It is not an unprimeable number, because it can be changed into a prime (214857983) 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 in 3 ways as a sum of consecutive naturals, for example, 66063 + ... + 69238.

Almost surely, 2^214857988 is an apocalyptic number.

It is an amenable number.

214857988 is a deficient number, since it is larger than the sum of its proper divisors (162093384).

214857988 is a wasteful number, since it uses less digits than its factorization.

214857988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135702 (or 135700 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 52.

The square root of 214857988 is about 14658.0349296896. The cubic root of 214857988 is about 598.9407124318.

The spelling of 214857988 in words is "two hundred fourteen million, eight hundred fifty-seven thousand, nine hundred eighty-eight".