9401440 has 48 divisors (see below), whose sum is σ = 22568112. Its totient is φ = 3700224.

The previous prime is 9401419. The next prime is 9401467. The reversal of 9401440 is 441049.

It is a happy number.

9401440 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 10282 + ... + 11158.

It is an arithmetic number, because the mean of its divisors is an integer number (470169).

Almost surely, 2^9401440 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 9401440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11284056).

9401440 is an abundant number, since it is smaller than the sum of its proper divisors (13166672).

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

9401440 is a wasteful number, since it uses less digits than its factorization.

9401440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 959 (or 951 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 9401440 is about 3066.1767724644. The cubic root of 9401440 is about 211.0562056866.

Adding to 9401440 its reverse (441049), we get a palindrome (9842489).

The spelling of 9401440 in words is "nine million, four hundred one thousand, four hundred forty".