445423536 has 100 divisors (see below), whose sum is σ = 1357111800. Its totient is φ = 140652288.

The previous prime is 445423523. The next prime is 445423553. The reversal of 445423536 is 635324544.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 445423536.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15580 + ... + 33668.

It is an arithmetic number, because the mean of its divisors is an integer number (13571118).

Almost surely, 2^445423536 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 445423536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (678555900).

445423536 is an abundant number, since it is smaller than the sum of its proper divisors (911688264).

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

445423536 is a wasteful number, since it uses less digits than its factorization.

445423536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18128 (or 18113 counting only the distinct ones).

The product of its digits is 172800, while the sum is 36.

The square root of 445423536 is about 21105.0594881891. The cubic root of 445423536 is about 763.7028073911.

The spelling of 445423536 in words is "four hundred forty-five million, four hundred twenty-three thousand, five hundred thirty-six".