1101864 has 32 divisors (see below), whose sum is σ = 2845440. Its totient is φ = 355200.
The previous prime is 1101851. The next prime is 1101871. The reversal of 1101864 is 4681011.
It is a super-3 number, since 3×11018643 = 4013333376939781632, which contains 333 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 1101864.
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, 4 + ... + 1484.
It is an arithmetic number, because the mean of its divisors is an integer number (88920).
21101864 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 1101864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1422720).
1101864 is an abundant number, since it is smaller than the sum of its proper divisors (1743576).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1101864 is a wasteful number, since it uses less digits than its factorization.
1101864 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1521 (or 1517 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 21.
The square root of 1101864 is about 1049.6970991672. The cubic root of 1101864 is about 103.2862868272.
Adding to 1101864 its reverse (4681011), we get a palindrome (5782875).
The spelling of 1101864 in words is "one million, one hundred one thousand, eight hundred sixty-four".
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