447394940 has 12 divisors (see below), whose sum is σ = 939529416. Its totient is φ = 178957968.

The previous prime is 447394891. The next prime is 447394949. The reversal of 447394940 is 49493744.

It is a junction number, because it is equal to n+sod(n) for n = 447394891 and 447394900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447394949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11184854 + ... + 11184893.

It is an arithmetic number, because the mean of its divisors is an integer number (78294118).

Almost surely, 2^447394940 is an apocalyptic number.

It is an amenable number.

447394940 is an abundant number, since it is smaller than the sum of its proper divisors (492134476).

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

447394940 is a wasteful number, since it uses less digits than its factorization.

447394940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22369756 (or 22369754 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 44.

The square root of 447394940 is about 21151.7124602241. The cubic root of 447394940 is about 764.8278422745.

The spelling of 447394940 in words is "four hundred forty-seven million, three hundred ninety-four thousand, nine hundred forty".