443698816 has 32 divisors (see below), whose sum is σ = 964291680. Its totient is φ = 201680640.

The previous prime is 443698813. The next prime is 443698823. The reversal of 443698816 is 618896344.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 443698816.

It is not an unprimeable number, because it can be changed into a prime (443698813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156156 + ... + 158971.

It is an arithmetic number, because the mean of its divisors is an integer number (30134115).

Almost surely, 2^443698816 is an apocalyptic number.

It is an amenable number.

443698816 is an abundant number, since it is smaller than the sum of its proper divisors (520592864).

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

443698816 is a wasteful number, since it uses less digits than its factorization.

443698816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315152 (or 315140 counting only the distinct ones).

The product of its digits is 995328, while the sum is 49.

The square root of 443698816 is about 21064.1595132585. The cubic root of 443698816 is about 762.7158237397.

The spelling of 443698816 in words is "four hundred forty-three million, six hundred ninety-eight thousand, eight hundred sixteen".