11040020 has 12 divisors (see below), whose sum is σ = 23184084. Its totient is φ = 4416000.

The previous prime is 11040019. The next prime is 11040031. The reversal of 11040020 is 2004011.

It can be written as a sum of positive squares in 2 ways, for example, as 5299204 + 5740816 = 2302^2 + 2396^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275981 + ... + 276020.

It is an arithmetic number, because the mean of its divisors is an integer number (1932007).

Almost surely, 2^11040020 is an apocalyptic number.

11040020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11040020 is an abundant number, since it is smaller than the sum of its proper divisors (12144064).

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

11040020 is a wasteful number, since it uses less digits than its factorization.

11040020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552010 (or 552008 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 11040020 is about 3322.6525548122. The cubic root of 11040020 is about 222.6673907650.

Adding to 11040020 its reverse (2004011), we get a palindrome (13044031).

The spelling of 11040020 in words is "eleven million, forty thousand, twenty".