9431404644 has 48 divisors (see below), whose sum is σ = 22601355840. Its totient is φ = 3059894400.

The previous prime is 9431404603. The next prime is 9431404649. The reversal of 9431404644 is 4464041349.

It is not an unprimeable number, because it can be changed into a prime (9431404649) 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, 5562 + ... + 137454.

It is an arithmetic number, because the mean of its divisors is an integer number (470861580).

Almost surely, 2^9431404644 is an apocalyptic number.

It is an amenable number.

9431404644 is an abundant number, since it is smaller than the sum of its proper divisors (13169951196).

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

9431404644 is a wasteful number, since it uses less digits than its factorization.

9431404644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132060 (or 132058 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 39.

The square root of 9431404644 is about 97115.4191876862. The cubic root of 9431404644 is about 2112.8019679863.

The spelling of 9431404644 in words is "nine billion, four hundred thirty-one million, four hundred four thousand, six hundred forty-four".