226504781 has 4 divisors (see below), whose sum is σ = 227340864. Its totient is φ = 225668700.

The previous prime is 226504763. The next prime is 226504783. The reversal of 226504781 is 187405622.

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 a cyclic number.

It is not a de Polignac number, because 226504781 - 2²⁶ = 159395917 is a prime.

It is a super-2 number, since 2×226504781² = 102608831631715922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226504783) 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, 417635 + ... + 418176.

It is an arithmetic number, because the mean of its divisors is an integer number (56835216).

Almost surely, 2^226504781 is an apocalyptic number.

It is an amenable number.

226504781 is a deficient number, since it is larger than the sum of its proper divisors (836083).

226504781 is an equidigital number, since it uses as much as digits as its factorization.

226504781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836082.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 226504781 is about 15050.0757805401. The cubic root of 226504781 is about 609.5730964494.

The spelling of 226504781 in words is "two hundred twenty-six million, five hundred four thousand, seven hundred eighty-one".