1103400 has 72 divisors (see below), whose sum is σ = 3711630. Its totient is φ = 293760.

The previous prime is 1103371. The next prime is 1103437. The reversal of 1103400 is 43011.

It can be written as a sum of positive squares in 3 ways, for example, as 427716 + 675684 = 654^2 + 822^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1494 + ... + 2106.

2^1103400 is an apocalyptic number.

1103400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1103400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1855815).

1103400 is an abundant number, since it is smaller than the sum of its proper divisors (2608230).

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

1103400 is a wasteful number, since it uses less digits than its factorization.

1103400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635 (or 623 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 1103400 is about 1050.4284840007. The cubic root of 1103400 is about 103.3342582875.

Adding to 1103400 its reverse (43011), we get a palindrome (1146411).

The spelling of 1103400 in words is "one million, one hundred three thousand, four hundred".