447430 has 16 divisors (see below), whose sum is σ = 815184. Its totient is φ = 176800.

The previous prime is 447427. The next prime is 447439. The reversal of 447430 is 34744.

447430 = T₃₉ + T₄₀ + ... + T₁₃₉.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447439) 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 7 ways as a sum of consecutive naturals, for example, 789 + ... + 1231.

It is an arithmetic number, because the mean of its divisors is an integer number (50949).

2⁴⁴⁷⁴³⁰ is an apocalyptic number.

447430 is a deficient number, since it is larger than the sum of its proper divisors (367754).

447430 is a wasteful number, since it uses less digits than its factorization.

447430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 447430 is about 668.9020855103. The cubic root of 447430 is about 76.4847820271.

Subtracting from 447430 its reverse (34744), we obtain a triangular number (412686 = T₉₀₈).

The spelling of 447430 in words is "four hundred forty-seven thousand, four hundred thirty".