214440 has 32 divisors (see below), whose sum is σ = 643680. Its totient is φ = 57152.

The previous prime is 214439. The next prime is 214451. The reversal of 214440 is 44412.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 774 + ... + 1013.

It is an arithmetic number, because the mean of its divisors is an integer number (20115).

2²¹⁴⁴⁴⁰ is an apocalyptic number.

214440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

214440 is an abundant number, since it is smaller than the sum of its proper divisors (429240).

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

214440 is a wasteful number, since it uses less digits than its factorization.

214440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1801 (or 1797 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 214440 is about 463.0766675185. The cubic root of 214440 is about 59.8552064169.

Adding to 214440 its reverse (44412), we get a palindrome (258852).

The spelling of 214440 in words is "two hundred fourteen thousand, four hundred forty", and thus it is an iban number.