214404321 has 32 divisors (see below), whose sum is σ = 308183040. Its totient is φ = 132257664.

The previous prime is 214404317. The next prime is 214404329. The reversal of 214404321 is 123404412.

214404321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 214404321 - 2² = 214404317 is a prime.

It is not an unprimeable number, because it can be changed into a prime (214404329) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 376525 + ... + 377093.

It is an arithmetic number, because the mean of its divisors is an integer number (9630720).

Almost surely, 2^214404321 is an apocalyptic number.

It is an amenable number.

214404321 is a deficient number, since it is larger than the sum of its proper divisors (93778719).

214404321 is a wasteful number, since it uses less digits than its factorization.

214404321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 214404321 is about 14642.5517243409. The cubic root of 214404321 is about 598.5188661907.

Adding to 214404321 its reverse (123404412), we get a palindrome (337808733).

Subtracting from 214404321 its reverse (123404412), we obtain a palindrome (90999909).

The spelling of 214404321 in words is "two hundred fourteen million, four hundred four thousand, three hundred twenty-one".