1103440800 has 432 divisors, whose sum is σ = 4563270432. Its totient is φ = 229017600.

The previous prime is 1103440787. The next prime is 1103440813. The reversal of 1103440800 is 80443011.

It is an interprime number because it is at equal distance from previous prime (1103440787) and next prime (1103440813).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1293174 + ... + 1294026.

It is an arithmetic number, because the mean of its divisors is an integer number (10563126).

Almost surely, 2^1103440800 is an apocalyptic number.

1103440800 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 1103440800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2281635216).

1103440800 is an abundant number, since it is smaller than the sum of its proper divisors (3459829632).

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

1103440800 is a wasteful number, since it uses less digits than its factorization.

1103440800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901 (or 881 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1103440800 is about 33218.0794146802. The cubic root of 1103440800 is about 1033.3553192223.

Adding to 1103440800 its reverse (80443011), we get a palindrome (1183883811).

The spelling of 1103440800 in words is "one billion, one hundred three million, four hundred forty thousand, eight hundred".