224000421 has 8 divisors (see below), whose sum is σ = 300336480. Its totient is φ = 148498992.

The previous prime is 224000369. The next prime is 224000423. The reversal of 224000421 is 124000422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 224000421 - 2¹³ = 223992229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 224000421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224000423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208030 + ... + 209103.

It is an arithmetic number, because the mean of its divisors is an integer number (37542060).

Almost surely, 2^224000421 is an apocalyptic number.

It is an amenable number.

224000421 is a deficient number, since it is larger than the sum of its proper divisors (76336059).

224000421 is a wasteful number, since it uses less digits than its factorization.

224000421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417315.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 224000421 is about 14966.6436117120. The cubic root of 224000421 is about 607.3181748523.

Adding to 224000421 its reverse (124000422), we get a palindrome (348000843).

Subtracting from 224000421 its reverse (124000422), we obtain a palindrome (99999999).

The spelling of 224000421 in words is "two hundred twenty-four million, four hundred twenty-one", and thus it is an aban number.