447813900 has 72 divisors (see below), whose sum is σ = 1439647440. Its totient is φ = 119416320.

The previous prime is 447813857. The next prime is 447813973. The reversal of 447813900 is 9318744.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80229 + ... + 85628.

Almost surely, 2^447813900 is an apocalyptic number.

It is an amenable number.

447813900 is an abundant number, since it is smaller than the sum of its proper divisors (991833540).

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

447813900 is a wasteful number, since it uses less digits than its factorization.

447813900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165880 (or 165867 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 447813900 is about 21161.6138325979. The cubic root of 447813900 is about 765.0665070975.

The spelling of 447813900 in words is "four hundred forty-seven million, eight hundred thirteen thousand, nine hundred".