443397045 has 64 divisors (see below), whose sum is σ = 879137280. Its totient is φ = 185822208.

The previous prime is 443397041. The next prime is 443397047. The reversal of 443397045 is 540793344.

It is not a de Polignac number, because 443397045 - 2² = 443397041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 443396994 and 443397012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (443397041) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 213271 + ... + 215339.

It is an arithmetic number, because the mean of its divisors is an integer number (13736520).

Almost surely, 2^443397045 is an apocalyptic number.

It is an amenable number.

443397045 is a deficient number, since it is larger than the sum of its proper divisors (435740235).

443397045 is a wasteful number, since it uses less digits than its factorization.

443397045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2254.

The product of its (nonzero) digits is 181440, while the sum is 39.

The square root of 443397045 is about 21056.9951560046. The cubic root of 443397045 is about 762.5428702941.

The spelling of 443397045 in words is "four hundred forty-three million, three hundred ninety-seven thousand, forty-five".