447444 has 30 divisors (see below), whose sum is σ = 1170554. Its totient is φ = 149040.

The previous prime is 447443. The next prime is 447449. The reversal of 447444 is 444744.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 374544 + 72900 = 612^2 + 270^2 .

It is a super-2 number, since 2×447444² = 400412266272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 367 + ... + 1014.

2⁴⁴⁷⁴⁴⁴ is an apocalyptic number.

It is an amenable number.

447444 is an abundant number, since it is smaller than the sum of its proper divisors (723110).

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

447444 is a wasteful number, since it uses less digits than its factorization.

447444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397 (or 1386 counting only the distinct ones).

The product of its digits is 7168, while the sum is 27.

The square root of 447444 is about 668.9125503382. The cubic root of 447444 is about 76.4855797502.

The spelling of 447444 in words is "four hundred forty-seven thousand, four hundred forty-four", and thus it is an iban number.