447942 has 24 divisors (see below), whose sum is σ = 986328. Its totient is φ = 135520.

The previous prime is 447907. The next prime is 447943. The reversal of 447942 is 249744.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447943) 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 11 ways as a sum of consecutive naturals, for example, 418 + ... + 1034.

It is an arithmetic number, because the mean of its divisors is an integer number (41097).

2⁴⁴⁷⁹⁴² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 447942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (493164).

447942 is an abundant number, since it is smaller than the sum of its proper divisors (538386).

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

447942 is a wasteful number, since it uses less digits than its factorization.

447942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644 (or 633 counting only the distinct ones).

The product of its digits is 8064, while the sum is 30.

The square root of 447942 is about 669.2846927878. The cubic root of 447942 is about 76.5139450848.

The spelling of 447942 in words is "four hundred forty-seven thousand, nine hundred forty-two".