214244421 has 16 divisors (see below), whose sum is σ = 303735168. Its totient is φ = 133862400.

The previous prime is 214244419. The next prime is 214244423. The reversal of 214244421 is 124442412.

It is an interprime number because it is at equal distance from previous prime (214244419) and next prime (214244423).

It is not a de Polignac number, because 214244421 - 2¹ = 214244419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 214244391 and 214244400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214244423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3576 + ... + 21006.

It is an arithmetic number, because the mean of its divisors is an integer number (18983448).

Almost surely, 2^214244421 is an apocalyptic number.

It is an amenable number.

214244421 is a deficient number, since it is larger than the sum of its proper divisors (89490747).

214244421 is a wasteful number, since it uses less digits than its factorization.

214244421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17692.

The product of its digits is 2048, while the sum is 24.

The square root of 214244421 is about 14637.0905920541. The cubic root of 214244421 is about 598.3700399489.

Adding to 214244421 its reverse (124442412), we get a palindrome (338686833).

The spelling of 214244421 in words is "two hundred fourteen million, two hundred forty-four thousand, four hundred twenty-one".