1102808 has 32 divisors (see below), whose sum is σ = 2419200. Its totient is φ = 461472.

The previous prime is 1102757. The next prime is 1102813. The reversal of 1102808 is 8082011.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1102808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2423 + ... + 2841.

It is an arithmetic number, because the mean of its divisors is an integer number (75600).

2^1102808 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 1102808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1209600).

1102808 is an abundant number, since it is smaller than the sum of its proper divisors (1316392).

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

1102808 is a wasteful number, since it uses less digits than its factorization.

1102808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479 (or 475 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 1102808 is about 1050.1466564247. The cubic root of 1102808 is about 103.3157745631.

Adding to 1102808 its reverse (8082011), we get a palindrome (9184819).

The spelling of 1102808 in words is "one million, one hundred two thousand, eight hundred eight".