226713778 has 4 divisors (see below), whose sum is σ = 340070670. Its totient is φ = 113356888.

The previous prime is 226713733. The next prime is 226713779. The reversal of 226713778 is 877317622.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 877317622 = 2 ⋅438658811.

It can be written as a sum of positive squares in only one way, i.e., 226713249 + 529 = 15057^2 + 23^2 .

It is not an unprimeable number, because it can be changed into a prime (226713779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56678443 + ... + 56678446.

Almost surely, 2^226713778 is an apocalyptic number.

226713778 is a deficient number, since it is larger than the sum of its proper divisors (113356892).

226713778 is a wasteful number, since it uses less digits than its factorization.

226713778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113356891.

The product of its digits is 197568, while the sum is 43.

The square root of 226713778 is about 15057.0175665701. The cubic root of 226713778 is about 609.7605241114.

The spelling of 226713778 in words is "two hundred twenty-six million, seven hundred thirteen thousand, seven hundred seventy-eight".