440869536 has 72 divisors (see below), whose sum is σ = 1256411520. Its totient is φ = 146641536.

The previous prime is 440869489. The next prime is 440869547. The reversal of 440869536 is 635968044.

It is a tau number, because it is divible by the number of its divisors (72).

It is a junction number, because it is equal to n+sod(n) for n = 440869491 and 440869500.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 160785 + ... + 163503.

It is an arithmetic number, because the mean of its divisors is an integer number (17450160).

Almost surely, 2^440869536 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 440869536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (628205760).

440869536 is an abundant number, since it is smaller than the sum of its proper divisors (815541984).

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

440869536 is a wasteful number, since it uses less digits than its factorization.

440869536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3298 (or 3287 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The square root of 440869536 is about 20996.8934845134. The cubic root of 440869536 is about 761.0911933852.

The spelling of 440869536 in words is "four hundred forty million, eight hundred sixty-nine thousand, five hundred thirty-six".