445440450 has 96 divisors (see below), whose sum is σ = 1359662976. Its totient is φ = 93980160.

The previous prime is 445440449. The next prime is 445440467. The reversal of 445440450 is 54044544.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2667 + ... + 29966.

It is an arithmetic number, because the mean of its divisors is an integer number (14163156).

Almost surely, 2^445440450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 445440450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (679831488).

445440450 is an abundant number, since it is smaller than the sum of its proper divisors (914222526).

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

445440450 is a wasteful number, since it uses less digits than its factorization.

445440450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32668 (or 32663 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 30.

The square root of 445440450 is about 21105.4601939877. The cubic root of 445440450 is about 763.7124739255.

Adding to 445440450 its reverse (54044544), we get a palindrome (499484994).

The spelling of 445440450 in words is "four hundred forty-five million, four hundred forty thousand, four hundred fifty".