11033780 has 12 divisors (see below), whose sum is σ = 23170980. Its totient is φ = 4413504.

The previous prime is 11033779. The next prime is 11033783. The reversal of 11033780 is 8733011.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7246864 + 3786916 = 2692^2 + 1946^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11033783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275825 + ... + 275864.

It is an arithmetic number, because the mean of its divisors is an integer number (1930915).

Almost surely, 2^11033780 is an apocalyptic number.

11033780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11033780 is an abundant number, since it is smaller than the sum of its proper divisors (12137200).

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

11033780 is a wasteful number, since it uses less digits than its factorization.

11033780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551698 (or 551696 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 11033780 is about 3321.7134132854. The cubic root of 11033780 is about 222.6254311073.

Adding to 11033780 its reverse (8733011), we get a palindrome (19766791).

The spelling of 11033780 in words is "eleven million, thirty-three thousand, seven hundred eighty".