445690226 has 8 divisors (see below), whose sum is σ = 668671104. Its totient is φ = 222799860.

The previous prime is 445690177. The next prime is 445690249. The reversal of 445690226 is 622096544.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 445690226.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8570 + ... + 31061.

It is an arithmetic number, because the mean of its divisors is an integer number (83583888).

Almost surely, 2^445690226 is an apocalyptic number.

445690226 is a deficient number, since it is larger than the sum of its proper divisors (222980878).

445690226 is a wasteful number, since it uses less digits than its factorization.

445690226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45256.

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 445690226 is about 21111.3766959902. The cubic root of 445690226 is about 763.8551951377.

The spelling of 445690226 in words is "four hundred forty-five million, six hundred ninety thousand, two hundred twenty-six".