445366226 has 4 divisors (see below), whose sum is σ = 668049342. Its totient is φ = 222683112.

The previous prime is 445366193. The next prime is 445366237. The reversal of 445366226 is 622663544.

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., 324036001 + 121330225 = 18001^2 + 11015^2 .

It is a super-2 number, since 2×445366226² = 396702150522966152, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 445366226.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111341555 + ... + 111341558.

Almost surely, 2^445366226 is an apocalyptic number.

445366226 is a deficient number, since it is larger than the sum of its proper divisors (222683116).

445366226 is a wasteful number, since it uses less digits than its factorization.

445366226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222683115.

The product of its digits is 207360, while the sum is 38.

The square root of 445366226 is about 21103.7017132066. The cubic root of 445366226 is about 763.6700522853.

The spelling of 445366226 in words is "four hundred forty-five million, three hundred sixty-six thousand, two hundred twenty-six".