802440 has 64 divisors (see below), whose sum is σ = 2678400. Its totient is φ = 213696.

The previous prime is 802421. The next prime is 802441. The reversal of 802440 is 44208.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 802440.

It is not an unprimeable number, because it can be changed into a prime (802441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 709 + ... + 1451.

It is an arithmetic number, because the mean of its divisors is an integer number (41850).

2⁸⁰²⁴⁴⁰ 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 802440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1339200).

802440 is an abundant number, since it is smaller than the sum of its proper divisors (1875960).

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

802440 is a wasteful number, since it uses less digits than its factorization.

802440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763 (or 753 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 802440 is about 895.7901539981. The cubic root of 802440 is about 92.9260598555.

Adding to 802440 its reverse (44208), we get a palindrome (846648).

The spelling of 802440 in words is "eight hundred two thousand, four hundred forty".