226579421 has 4 divisors (see below), whose sum is σ = 227936352. Its totient is φ = 225222492.

The previous prime is 226579343. The next prime is 226579429. The reversal of 226579421 is 124975622.

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 an emirpimes, since its reverse is a distinct semiprime: 124975622 = 2 ⋅62487811.

It is a cyclic number.

It is not a de Polignac number, because 226579421 - 2¹⁴ = 226563037 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 (226579429) 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, 678215 + ... + 678548.

It is an arithmetic number, because the mean of its divisors is an integer number (56984088).

Almost surely, 2^226579421 is an apocalyptic number.

It is an amenable number.

226579421 is a deficient number, since it is larger than the sum of its proper divisors (1356931).

226579421 is a wasteful number, since it uses less digits than its factorization.

226579421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356930.

The product of its digits is 60480, while the sum is 38.

The square root of 226579421 is about 15052.5552980217. Note that the first 3 decimals coincide. The cubic root of 226579421 is about 609.6400465287.

The spelling of 226579421 in words is "two hundred twenty-six million, five hundred seventy-nine thousand, four hundred twenty-one".