214433421 has 4 divisors (see below), whose sum is σ = 285911232. Its totient is φ = 142955612.

The previous prime is 214433381. The next prime is 214433423. The reversal of 214433421 is 124334412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 214433421 - 2¹⁰ = 214432397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 214433391 and 214433400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214433423) 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, 35738901 + ... + 35738906.

It is an arithmetic number, because the mean of its divisors is an integer number (71477808).

Almost surely, 2^214433421 is an apocalyptic number.

It is an amenable number.

214433421 is a deficient number, since it is larger than the sum of its proper divisors (71477811).

214433421 is an equidigital number, since it uses as much as digits as its factorization.

214433421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71477810.

The product of its digits is 2304, while the sum is 24.

The square root of 214433421 is about 14643.5453698891. The cubic root of 214433421 is about 598.5459429322.

Adding to 214433421 its reverse (124334412), we get a palindrome (338767833).

Subtracting from 214433421 its reverse (124334412), we obtain a palindrome (90099009).

The spelling of 214433421 in words is "two hundred fourteen million, four hundred thirty-three thousand, four hundred twenty-one".