1103404032 has 220 divisors, whose sum is σ = 3370524696. Its totient is φ = 359424000.

The previous prime is 1103403997. The next prime is 1103404061. The reversal of 1103404032 is 2304043011.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1103403996 and 1103404014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4395907 + ... + 4396157.

Almost surely, 2^1103404032 is an apocalyptic number.

1103404032 is a gapful number since it is divisible by the number (12) 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 1103404032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1685262348).

1103404032 is an abundant number, since it is smaller than the sum of its proper divisors (2267120664).

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

1103404032 is an equidigital number, since it uses as much as digits as its factorization.

1103404032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336 (or 309 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1103404032 is about 33217.5259765082. The cubic root of 1103404032 is about 1033.3438415396.

Adding to 1103404032 its reverse (2304043011), we get a palindrome (3407447043).

The spelling of 1103404032 in words is "one billion, one hundred three million, four hundred four thousand, thirty-two".