443894226 has 32 divisors (see below), whose sum is σ = 954408960. Its totient is φ = 137192976.

The previous prime is 443894197. The next prime is 443894237. The reversal of 443894226 is 622498344.

It is a super-2 number, since 2×443894226² = 394084167752278152, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36066 + ... + 46781.

It is an arithmetic number, because the mean of its divisors is an integer number (29825280).

Almost surely, 2^443894226 is an apocalyptic number.

443894226 is an abundant number, since it is smaller than the sum of its proper divisors (510514734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

443894226 is a wasteful number, since it uses less digits than its factorization.

443894226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82918.

The product of its digits is 331776, while the sum is 42.

The square root of 443894226 is about 21068.7974502580. The cubic root of 443894226 is about 762.8277768778.

The spelling of 443894226 in words is "four hundred forty-three million, eight hundred ninety-four thousand, two hundred twenty-six".