443420398 has 4 divisors (see below), whose sum is σ = 665130600. Its totient is φ = 221710198.

The previous prime is 443420389. The next prime is 443420399. The reversal of 443420398 is 893024344.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (443420399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110855098 + ... + 110855101.

It is an arithmetic number, because the mean of its divisors is an integer number (166282650).

Almost surely, 2^443420398 is an apocalyptic number.

443420398 is a deficient number, since it is larger than the sum of its proper divisors (221710202).

443420398 is a wasteful number, since it uses less digits than its factorization.

443420398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221710201.

The product of its (nonzero) digits is 82944, while the sum is 37.

The square root of 443420398 is about 21057.5496675183. The cubic root of 443420398 is about 762.5562573560.

The spelling of 443420398 in words is "four hundred forty-three million, four hundred twenty thousand, three hundred ninety-eight".