214213888 has 54 divisors (see below), whose sum is σ = 497430906. Its totient is φ = 91800576.

The previous prime is 214213877. The next prime is 214213891. The reversal of 214213888 is 888312412.

It can be written as a sum of positive squares in only one way, i.e., 177635584 + 36578304 = 13328^2 + 6048^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4006 + ... + 21082.

Almost surely, 2^214213888 is an apocalyptic number.

214213888 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 214213888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248715453).

214213888 is an abundant number, since it is smaller than the sum of its proper divisors (283217018).

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

214213888 is an equidigital number, since it uses as much as digits as its factorization.

214213888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17107 (or 17086 counting only the distinct ones).

The product of its digits is 24576, while the sum is 37.

The square root of 214213888 is about 14636.0475538992. The cubic root of 214213888 is about 598.3416130704.

The spelling of 214213888 in words is "two hundred fourteen million, two hundred thirteen thousand, eight hundred eighty-eight".