445966620 has 192 divisors, whose sum is σ = 1430618112. Its totient is φ = 102816000.

The previous prime is 445966603. The next prime is 445966643. The reversal of 445966620 is 26669544.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1452507 + ... + 1452813.

It is an arithmetic number, because the mean of its divisors is an integer number (7451136).

Almost surely, 2^445966620 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 445966620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (715309056).

445966620 is an abundant number, since it is smaller than the sum of its proper divisors (984651492).

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

445966620 is a wasteful number, since it uses less digits than its factorization.

445966620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432 (or 430 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 42.

The square root of 445966620 is about 21117.9217727503. The cubic root of 445966620 is about 764.0130636546.

The spelling of 445966620 in words is "four hundred forty-five million, nine hundred sixty-six thousand, six hundred twenty".