447764620 has 48 divisors (see below), whose sum is σ = 973598976. Its totient is φ = 172800000.

The previous prime is 447764563. The next prime is 447764627. The reversal of 447764620 is 26467744.

It is not an unprimeable number, because it can be changed into a prime (447764627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247720 + ... + 249520.

It is an arithmetic number, because the mean of its divisors is an integer number (20283312).

Almost surely, 2^447764620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 447764620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (486799488).

447764620 is an abundant number, since it is smaller than the sum of its proper divisors (525834356).

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

447764620 is a wasteful number, since it uses less digits than its factorization.

447764620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2242 (or 2240 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 40.

The square root of 447764620 is about 21160.4494281194. The cubic root of 447764620 is about 765.0384419716.

The spelling of 447764620 in words is "four hundred forty-seven million, seven hundred sixty-four thousand, six hundred twenty".