1103204400 has 60 divisors (see below), whose sum is σ = 3533935272. Its totient is φ = 294187520.

The previous prime is 1103204393. The next prime is 1103204413. The reversal of 1103204400 is 44023011.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1103204400.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 458469 + ... + 460868.

Almost surely, 2^1103204400 is an apocalyptic number.

1103204400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1103204400 is an abundant number, since it is smaller than the sum of its proper divisors (2430730872).

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

1103204400 is a wasteful number, since it uses less digits than its factorization.

1103204400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919358 (or 919347 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1103204400 is about 33214.5209208262. The cubic root of 1103204400 is about 1033.2815189651.

Adding to 1103204400 its reverse (44023011), we get a palindrome (1147227411).

The spelling of 1103204400 in words is "one billion, one hundred three million, two hundred four thousand, four hundred".