447042340 has 24 divisors (see below), whose sum is σ = 939347640. Its totient is φ = 178710528.

The previous prime is 447042331. The next prime is 447042373. The reversal of 447042340 is 43240744.

It can be written as a sum of positive squares in 4 ways, for example, as 4024036 + 443018304 = 2006^2 + 21048^2 .

It is a junction number, because it is equal to n+sod(n) for n = 447042299 and 447042308.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 33796 + ... + 45124.

It is an arithmetic number, because the mean of its divisors is an integer number (39139485).

Almost surely, 2^447042340 is an apocalyptic number.

It is an amenable number.

447042340 is an abundant number, since it is smaller than the sum of its proper divisors (492305300).

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

447042340 is a wasteful number, since it uses less digits than its factorization.

447042340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13311 (or 13309 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 28.

The square root of 447042340 is about 21143.3757947968. The cubic root of 447042340 is about 764.6268646071.

The spelling of 447042340 in words is "four hundred forty-seven million, forty-two thousand, three hundred forty".