443397249 has 9 divisors (see below), whose sum is σ = 640553953. Its totient is φ = 295556052.

The previous prime is 443397203. The next prime is 443397257. The reversal of 443397249 is 942793344.

The square root of 443397249 is 21057.

It is a perfect power (a square), and thus also a powerful number.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 443397249 - 2⁷ = 443397121 is a prime.

It is a super-2 number, since 2×443397249² = 393202240841536002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (443397049) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 59662 + ... + 66680.

Almost surely, 2^443397249 is an apocalyptic number.

443397249 is the 21057-th square number.

443397249 is the 10529-th centered octagonal number.

It is an amenable number.

443397249 is a deficient number, since it is larger than the sum of its proper divisors (197156704).

443397249 is an frugal number, since it uses more digits than its factorization.

443397249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14044 (or 7022 counting only the distinct ones).

The product of its digits is 653184, while the sum is 45.

The cubic root of 443397249 is about 762.5429872388.

The spelling of 443397249 in words is "four hundred forty-three million, three hundred ninety-seven thousand, two hundred forty-nine".