214464421 has 4 divisors (see below), whose sum is σ = 214495744. Its totient is φ = 214433100.

The previous prime is 214464413. The next prime is 214464433. The reversal of 214464421 is 124464412.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 214464421 - 2³ = 214464413 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 214464421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214464461) 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, 495 + ... + 20716.

It is an arithmetic number, because the mean of its divisors is an integer number (53623936).

Almost surely, 2^214464421 is an apocalyptic number.

It is an amenable number.

214464421 is a deficient number, since it is larger than the sum of its proper divisors (31323).

214464421 is a wasteful number, since it uses less digits than its factorization.

214464421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31322.

The product of its digits is 6144, while the sum is 28.

The square root of 214464421 is about 14644.6038184718. The cubic root of 214464421 is about 598.5747848762.

Subtracting from 214464421 its reverse (124464412), we obtain a palindrome (90000009).

The spelling of 214464421 in words is "two hundred fourteen million, four hundred sixty-four thousand, four hundred twenty-one".