945440 has 48 divisors (see below), whose sum is σ = 2358720. Its totient is φ = 357120.

The previous prime is 945431. The next prime is 945457. The reversal of 945440 is 44549.

It is an Ulam number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 945440.

It is an unprimeable number.

945440 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2885 + ... + 3195.

It is an arithmetic number, because the mean of its divisors is an integer number (49140).

2⁹⁴⁵⁴⁴⁰ 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 945440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1179360).

945440 is an abundant number, since it is smaller than the sum of its proper divisors (1413280).

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

945440 is a wasteful number, since it uses less digits than its factorization.

945440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345 (or 337 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 945440 is about 972.3373900041. The cubic root of 945440 is about 98.1472173041.

Adding to 945440 its reverse (44549), we get a palindrome (989989).

The spelling of 945440 in words is "nine hundred forty-five thousand, four hundred forty".