1133603044 has 72 divisors (see below), whose sum is σ = 2473480800. Its totient is φ = 451632384.

The previous prime is 1133603039. The next prime is 1133603101. The reversal of 1133603044 is 4403063311.

It is a happy number.

It is a super-2 number, since 2×1133603044² = 2570111722732131872, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 274507 + ... + 278605.

It is an arithmetic number, because the mean of its divisors is an integer number (34353900).

Almost surely, 2^1133603044 is an apocalyptic number.

1133603044 is a gapful number since it is divisible by the number (14) 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 1133603044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1236740400).

1133603044 is an abundant number, since it is smaller than the sum of its proper divisors (1339877756).

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

1133603044 is a wasteful number, since it uses less digits than its factorization.

1133603044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4217 (or 4208 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 1133603044 is about 33669.0220232189. The cubic root of 1133603044 is about 1042.6863011673.

Adding to 1133603044 its reverse (4403063311), we get a palindrome (5536666355).

The spelling of 1133603044 in words is "one billion, one hundred thirty-three million, six hundred three thousand, forty-four".