224949421 has 4 divisors (see below), whose sum is σ = 226015744. Its totient is φ = 223883100.

The previous prime is 224949391. The next prime is 224949451. The reversal of 224949421 is 124949422.

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 an interprime number because it is at equal distance from previous prime (224949391) and next prime (224949451).

It is a cyclic number.

It is not a de Polignac number, because 224949421 - 2⁷ = 224949293 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 (224949451) 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, 532845 + ... + 533266.

It is an arithmetic number, because the mean of its divisors is an integer number (56503936).

Almost surely, 2^224949421 is an apocalyptic number.

It is an amenable number.

224949421 is a deficient number, since it is larger than the sum of its proper divisors (1066323).

224949421 is a wasteful number, since it uses less digits than its factorization.

224949421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066322.

The product of its digits is 41472, while the sum is 37.

The square root of 224949421 is about 14998.3139385732. The cubic root of 224949421 is about 608.1746210760.

Subtracting from 224949421 its reverse (124949422), we obtain a palindrome (99999999).

The spelling of 224949421 in words is "two hundred twenty-four million, nine hundred forty-nine thousand, four hundred twenty-one".