445668500 has 48 divisors (see below), whose sum is σ = 985158720. Its totient is φ = 176103200.

The previous prime is 445668407. The next prime is 445668533. The reversal of 445668500 is 5866544.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36131 + ... + 46869.

It is an arithmetic number, because the mean of its divisors is an integer number (20524140).

Almost surely, 2^445668500 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 445668500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (492579360).

445668500 is an abundant number, since it is smaller than the sum of its proper divisors (539490220).

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

445668500 is a wasteful number, since it uses less digits than its factorization.

445668500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10841 (or 10829 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 38.

The square root of 445668500 is about 21110.8621330347. The cubic root of 445668500 is about 763.8427830881.

The spelling of 445668500 in words is "four hundred forty-five million, six hundred sixty-eight thousand, five hundred".