445415404 has 48 divisors (see below), whose sum is σ = 940101120. Its totient is φ = 180385920.

The previous prime is 445415393. The next prime is 445415407. The reversal of 445415404 is 404514544.

It is not an unprimeable number, because it can be changed into a prime (445415407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 276369 + ... + 277975.

It is an arithmetic number, because the mean of its divisors is an integer number (19585440).

Almost surely, 2^445415404 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 445415404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (470050560).

445415404 is an abundant number, since it is smaller than the sum of its proper divisors (494685716).

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

445415404 is a wasteful number, since it uses less digits than its factorization.

445415404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2158 (or 2156 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 31.

The square root of 445415404 is about 21104.8668320840. The cubic root of 445415404 is about 763.6981597778.

Adding to 445415404 its reverse (404514544), we get a palindrome (849929948).

The spelling of 445415404 in words is "four hundred forty-five million, four hundred fifteen thousand, four hundred four".