447616620 has 144 divisors (see below), whose sum is σ = 1490580000. Its totient is φ = 107827200.

The previous prime is 447616619. The next prime is 447616633. The reversal of 447616620 is 26616744.

447616620 is a `hidden beast` number, since 4 + 476 + 166 + 20 = 666.

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

It is a zygodrome in base 6.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 357756 + ... + 359004.

It is an arithmetic number, because the mean of its divisors is an integer number (10351250).

Almost surely, 2^447616620 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 447616620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (745290000).

447616620 is an abundant number, since it is smaller than the sum of its proper divisors (1042963380).

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

447616620 is a wasteful number, since it uses less digits than its factorization.

447616620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456 (or 1451 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 447616620 is about 21156.9520489129. The cubic root of 447616620 is about 764.9541430926.

The spelling of 447616620 in words is "four hundred forty-seven million, six hundred sixteen thousand, six hundred twenty".