11042540 has 12 divisors (see below), whose sum is σ = 23189376. Its totient is φ = 4417008.

The previous prime is 11042531. The next prime is 11042561. The reversal of 11042540 is 4524011.

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, 276044 + ... + 276083.

It is an arithmetic number, because the mean of its divisors is an integer number (1932448).

Almost surely, 2^11042540 is an apocalyptic number.

11042540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11042540 is an abundant number, since it is smaller than the sum of its proper divisors (12146836).

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

11042540 is a wasteful number, since it uses less digits than its factorization.

11042540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552136 (or 552134 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 11042540 is about 3323.0317482684. The cubic root of 11042540 is about 222.6843315295.

Adding to 11042540 its reverse (4524011), we get a palindrome (15566551).

The spelling of 11042540 in words is "eleven million, forty-two thousand, five hundred forty".