214404439 has 4 divisors (see below), whose sum is σ = 214463224. Its totient is φ = 214345656.

The previous prime is 214404419. The next prime is 214404467. The reversal of 214404439 is 934404412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 214404439 - 2⁹ = 214403927 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 214404439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214404409) 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, 23532 + ... + 31345.

It is an arithmetic number, because the mean of its divisors is an integer number (53615806).

Almost surely, 2^214404439 is an apocalyptic number.

214404439 is a deficient number, since it is larger than the sum of its proper divisors (58785).

214404439 is an equidigital number, since it uses as much as digits as its factorization.

214404439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58784.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 214404439 is about 14642.5557536927. Note that the first 3 decimals coincide. The cubic root of 214404439 is about 598.5189759914.

The spelling of 214404439 in words is "two hundred fourteen million, four hundred four thousand, four hundred thirty-nine".