445040432 has 40 divisors (see below), whose sum is σ = 903855840. Its totient is φ = 211875840.

The previous prime is 445040413. The next prime is 445040459. The reversal of 445040432 is 234040544.

It is a super-2 number, since 2×445040432² = 396121972229493248, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 81632 + ... + 86912.

It is an arithmetic number, because the mean of its divisors is an integer number (22596396).

Almost surely, 2^445040432 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 445040432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (451927920).

445040432 is an abundant number, since it is smaller than the sum of its proper divisors (458815408).

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

445040432 is a wasteful number, since it uses less digits than its factorization.

445040432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5541 (or 5535 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 445040432 is about 21095.9814182702. The cubic root of 445040432 is about 763.4837937276.

Adding to 445040432 its reverse (234040544), we get a palindrome (679080976).

The spelling of 445040432 in words is "four hundred forty-five million, forty thousand, four hundred thirty-two".