944439440 has 80 divisors (see below), whose sum is σ = 2513434368. Its totient is φ = 323301888.

The previous prime is 944439407. The next prime is 944439443. The reversal of 944439440 is 44934449.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (944439443) 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, 611309 + ... + 612851.

Almost surely, 2^944439440 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 944439440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1256717184).

944439440 is an abundant number, since it is smaller than the sum of its proper divisors (1568994928).

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

944439440 is a wasteful number, since it uses less digits than its factorization.

944439440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2656 (or 2650 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 41.

The square root of 944439440 is about 30731.7334363033. The cubic root of 944439440 is about 981.1258198702.

It can be divided in two parts, 9444 and 39440, that added together give a palindrome (48884).

The spelling of 944439440 in words is "nine hundred forty-four million, four hundred thirty-nine thousand, four hundred forty".