226716381 has 16 divisors (see below), whose sum is σ = 336278400. Its totient is φ = 150963264.

The previous prime is 226716349. The next prime is 226716397. The reversal of 226716381 is 183617622.

226716381 is a `hidden beast` number, since 2 + 267 + 16 + 381 = 666.

It is not a de Polignac number, because 226716381 - 2⁵ = 226716349 is a prime.

It is a super-2 number, since 2×226716381² = 102800634827474322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226716331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20245 + ... + 29381.

It is an arithmetic number, because the mean of its divisors is an integer number (21017400).

Almost surely, 2^226716381 is an apocalyptic number.

It is an amenable number.

226716381 is a deficient number, since it is larger than the sum of its proper divisors (109562019).

226716381 is an equidigital number, since it uses as much as digits as its factorization.

226716381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10065 (or 10059 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 226716381 is about 15057.1040044226. The cubic root of 226716381 is about 609.7628577449.

The spelling of 226716381 in words is "two hundred twenty-six million, seven hundred sixteen thousand, three hundred eighty-one".