944647920 has 120 divisors (see below), whose sum is σ = 3290008176. Its totient is φ = 251900928.

The previous prime is 944647919. The next prime is 944647937. The reversal of 944647920 is 29746449.

944647920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4857 + ... + 43736.

Almost surely, 2^944647920 is an apocalyptic number.

944647920 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 944647920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1645004088).

944647920 is an abundant number, since it is smaller than the sum of its proper divisors (2345360256).

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

944647920 is a wasteful number, since it uses less digits than its factorization.

944647920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48621 (or 48603 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 944647920 is about 30735.1251827612. The cubic root of 944647920 is about 981.1980073335.

The spelling of 944647920 in words is "nine hundred forty-four million, six hundred forty-seven thousand, nine hundred twenty".