9144940 has 48 divisors (see below), whose sum is σ = 22240512. Its totient is φ = 3093696.

The previous prime is 9144917. The next prime is 9145033. The reversal of 9144940 is 494419.

9144940 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 11227 + ... + 12013.

It is an arithmetic number, because the mean of its divisors is an integer number (463344).

Almost surely, 2^9144940 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 9144940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11120256).

9144940 is an abundant number, since it is smaller than the sum of its proper divisors (13095572).

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

9144940 is a wasteful number, since it uses less digits than its factorization.

9144940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886 (or 884 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 9144940 is about 3024.0601845863. The cubic root of 9144940 is about 209.1190609972.

The spelling of 9144940 in words is "nine million, one hundred forty-four thousand, nine hundred forty".