803640 has 64 divisors (see below), whose sum is σ = 2489760. Its totient is φ = 207360.

The previous prime is 803629. The next prime is 803651. The reversal of 803640 is 46308.

It is an interprime number because it is at equal distance from previous prime (803629) and next prime (803651).

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 803640.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4350 + ... + 4530.

2⁸⁰³⁶⁴⁰ 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 803640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1244880).

803640 is an abundant number, since it is smaller than the sum of its proper divisors (1686120).

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

803640 is a wasteful number, since it uses less digits than its factorization.

803640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232 (or 228 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 803640 is about 896.4597035004. The cubic root of 803640 is about 92.9723585328.

Adding to 803640 its reverse (46308), we get a palindrome (849948).

The spelling of 803640 in words is "eight hundred three thousand, six hundred forty".