226378066 has 4 divisors (see below), whose sum is σ = 339567102. Its totient is φ = 113189032.

The previous prime is 226378057. The next prime is 226378073. The reversal of 226378066 is 660873622.

226378066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 117614025 + 108764041 = 10845^2 + 10429^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56594515 + ... + 56594518.

Almost surely, 2^226378066 is an apocalyptic number.

226378066 is a deficient number, since it is larger than the sum of its proper divisors (113189036).

226378066 is a wasteful number, since it uses less digits than its factorization.

226378066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113189035.

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 226378066 is about 15045.8654121323. The cubic root of 226378066 is about 609.4594028030.

It can be divided in two parts, 22637 and 8066, that added together give a palindrome (30703).

The spelling of 226378066 in words is "two hundred twenty-six million, three hundred seventy-eight thousand, sixty-six".