11040280 has 16 divisors (see below), whose sum is σ = 24840720. Its totient is φ = 4416096.

The previous prime is 11040241. The next prime is 11040313. The reversal of 11040280 is 8204011.

It is a happy number.

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, 137964 + ... + 138043.

It is an arithmetic number, because the mean of its divisors is an integer number (1552545).

Almost surely, 2^11040280 is an apocalyptic number.

11040280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11040280 is an abundant number, since it is smaller than the sum of its proper divisors (13800440).

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

11040280 is a wasteful number, since it uses less digits than its factorization.

11040280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276018 (or 276014 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 11040280 is about 3322.6916799487. The cubic root of 11040280 is about 222.6691387409.

Adding to 11040280 its reverse (8204011), we get a palindrome (19244291).

The spelling of 11040280 in words is "eleven million, forty thousand, two hundred eighty".