226764421 has 8 divisors (see below), whose sum is σ = 245621880. Its totient is φ = 208108992.

The previous prime is 226764409. The next prime is 226764437. The reversal of 226764421 is 124467622.

It can be written as a sum of positive squares in 4 ways, for example, as 4456321 + 222308100 = 2111^2 + 14910^2 .

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

It is not a de Polignac number, because 226764421 - 2²¹ = 224667269 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 (226764451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48166 + ... + 52663.

It is an arithmetic number, because the mean of its divisors is an integer number (30702735).

Almost surely, 2^226764421 is an apocalyptic number.

It is an amenable number.

226764421 is a deficient number, since it is larger than the sum of its proper divisors (18857459).

226764421 is a wasteful number, since it uses less digits than its factorization.

226764421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101015.

The product of its digits is 32256, while the sum is 34.

The square root of 226764421 is about 15058.6991802081. The cubic root of 226764421 is about 609.8059232096.

The spelling of 226764421 in words is "two hundred twenty-six million, seven hundred sixty-four thousand, four hundred twenty-one".