224251421 has 8 divisors (see below), whose sum is σ = 226579584. Its totient is φ = 221934960.

The previous prime is 224251387. The next prime is 224251451. The reversal of 224251421 is 124152422.

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

It is a cyclic number.

It is not a de Polignac number, because 224251421 - 2¹⁸ = 223989277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224251451) 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, 38576 + ... + 44006.

It is an arithmetic number, because the mean of its divisors is an integer number (28322448).

Almost surely, 2^224251421 is an apocalyptic number.

It is an amenable number.

224251421 is a deficient number, since it is larger than the sum of its proper divisors (2328163).

224251421 is a wasteful number, since it uses less digits than its factorization.

224251421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5851.

The product of its digits is 1280, while the sum is 23.

The square root of 224251421 is about 14975.0265776058. The cubic root of 224251421 is about 607.5449303196.

The spelling of 224251421 in words is "two hundred twenty-four million, two hundred fifty-one thousand, four hundred twenty-one".