447808040 has 32 divisors (see below), whose sum is σ = 1034803080. Its totient is φ = 174281472.

The previous prime is 447808013. The next prime is 447808133. The reversal of 447808040 is 40808744.

It can be written as a sum of positive squares in 4 ways, for example, as 446645956 + 1162084 = 21134^2 + 1078^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149807 + ... + 152766.

Almost surely, 2^447808040 is an apocalyptic number.

447808040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

447808040 is an abundant number, since it is smaller than the sum of its proper divisors (586995040).

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

447808040 is a wasteful number, since it uses less digits than its factorization.

447808040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302621 (or 302617 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 35.

The square root of 447808040 is about 21161.4753738958. The cubic root of 447808040 is about 765.0631699157.

The spelling of 447808040 in words is "four hundred forty-seven million, eight hundred eight thousand, forty".