1100864 has 28 divisors (see below), whose sum is σ = 2218944. Its totient is φ = 541824.

The previous prime is 1100857. The next prime is 1100887. The reversal of 1100864 is 4680011.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6509 + ... + 6675.

It is an arithmetic number, because the mean of its divisors is an integer number (79248).

2^1100864 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 1100864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1109472).

1100864 is an abundant number, since it is smaller than the sum of its proper divisors (1118080).

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

1100864 is a wasteful number, since it uses less digits than its factorization.

1100864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282 (or 272 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 1100864 is about 1049.2206631591. The cubic root of 1100864 is about 103.2550314429.

Adding to 1100864 its reverse (4680011), we get a palindrome (5780875).

The spelling of 1100864 in words is "one million, one hundred thousand, eight hundred sixty-four".