214657988 has 12 divisors (see below), whose sum is σ = 391984320. Its totient is φ = 102662472.

The previous prime is 214657987. The next prime is 214658023. The reversal of 214657988 is 889756412.

It is not an unprimeable number, because it can be changed into a prime (214657987) 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, 1166528 + ... + 1166711.

It is an arithmetic number, because the mean of its divisors is an integer number (32665360).

Almost surely, 2^214657988 is an apocalyptic number.

It is an amenable number.

214657988 is a deficient number, since it is larger than the sum of its proper divisors (177326332).

214657988 is a wasteful number, since it uses less digits than its factorization.

214657988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2333266 (or 2333264 counting only the distinct ones).

The product of its digits is 967680, while the sum is 50.

The square root of 214657988 is about 14651.2111444754. The cubic root of 214657988 is about 598.7548139367.

The spelling of 214657988 in words is "two hundred fourteen million, six hundred fifty-seven thousand, nine hundred eighty-eight".