969440 has 48 divisors (see below), whose sum is σ = 2349648. Its totient is φ = 377856.

The previous prime is 969433. The next prime is 969443. The reversal of 969440 is 44969.

969440 = T₃₅₂ + T₃₅₃ + ... + T₃₆₆.

It is a happy number.

969440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 969397 and 969406.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 969440.

It is not an unprimeable number, because it can be changed into a prime (969443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11639 + ... + 11721.

It is an arithmetic number, because the mean of its divisors is an integer number (48951).

2⁹⁶⁹⁴⁴⁰ 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 969440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1174824).

969440 is an abundant number, since it is smaller than the sum of its proper divisors (1380208).

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

969440 is a wasteful number, since it uses less digits than its factorization.

969440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 969440 is about 984.6014422090. The cubic root of 969440 is about 98.9707766686.

The spelling of 969440 in words is "nine hundred sixty-nine thousand, four hundred forty".