447243342 has 128 divisors (see below), whose sum is σ = 1137991680. Its totient is φ = 114065280.

The previous prime is 447243341. The next prime is 447243343. The reversal of 447243342 is 243342744.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (447243341) and next prime (447243343).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447243341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3217509 + ... + 3217647.

It is an arithmetic number, because the mean of its divisors is an integer number (8890560).

Almost surely, 2^447243342 is an apocalyptic number.

447243342 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 447243342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (568995840).

447243342 is an abundant number, since it is smaller than the sum of its proper divisors (690748338).

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

447243342 is a wasteful number, since it uses less digits than its factorization.

447243342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318.

The product of its digits is 64512, while the sum is 33.

The square root of 447243342 is about 21148.1285696867. The cubic root of 447243342 is about 764.7414462223.

The spelling of 447243342 in words is "four hundred forty-seven million, two hundred forty-three thousand, three hundred forty-two".