965440 has 56 divisors (see below), whose sum is σ = 2633472. Its totient is φ = 330240.

The previous prime is 965429. The next prime is 965443. The reversal of 965440 is 44569.

965440 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 (56).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an Ulam number.

It is a nialpdrome in base 10 and base 16.

It is a junction number, because it is equal to n+sod(n) for n = 965399 and 965408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (965443) by changing a digit.

965440 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, 2025 + ... + 2455.

2⁹⁶⁵⁴⁴⁰ 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 965440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1316736).

965440 is an abundant number, since it is smaller than the sum of its proper divisors (1668032).

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

965440 is a wasteful number, since it uses less digits than its factorization.

965440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455 (or 445 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 965440 is about 982.5680638002. The cubic root of 965440 is about 98.8344681324.

The spelling of 965440 in words is "nine hundred sixty-five thousand, four hundred forty".