445420500 has 192 divisors, whose sum is σ = 1509580800. Its totient is φ = 99945600.

The previous prime is 445420487. The next prime is 445420501. The reversal of 445420500 is 5024544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445420501) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 619141 + ... + 619859.

It is an arithmetic number, because the mean of its divisors is an integer number (7862400).

Almost surely, 2^445420500 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 445420500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (754790400).

445420500 is an abundant number, since it is smaller than the sum of its proper divisors (1064160300).

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

445420500 is a wasteful number, since it uses less digits than its factorization.

445420500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807 (or 795 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 445420500 is about 21104.9875621854. The cubic root of 445420500 is about 763.7010722583.

The spelling of 445420500 in words is "four hundred forty-five million, four hundred twenty thousand, five hundred".