226420 has 12 divisors (see below), whose sum is σ = 475524. Its totient is φ = 90560.

The previous prime is 226409. The next prime is 226427. The reversal of 226420 is 24622.

It can be written as a sum of positive squares in 2 ways, for example, as 44944 + 181476 = 212^2 + 426^2 .

It is a junction number, because it is equal to n+sod(n) for n = 226394 and 226403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226427) by changing a digit.

226420 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5641 + ... + 5680.

It is an arithmetic number, because the mean of its divisors is an integer number (39627).

2²²⁶⁴²⁰ is an apocalyptic number.

226420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

226420 is an abundant number, since it is smaller than the sum of its proper divisors (249104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

226420 is a wasteful number, since it uses less digits than its factorization.

226420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11330 (or 11328 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 226420 is about 475.8361062383. The cubic root of 226420 is about 60.9497032321.

It can be divided in two parts, 226 and 420, that added together give a palindrome (646).

The spelling of 226420 in words is "two hundred twenty-six thousand, four hundred twenty".