11042920 has 32 divisors (see below), whose sum is σ = 28396800. Its totient is φ = 3786048.

The previous prime is 11042917. The next prime is 11042947. The reversal of 11042920 is 2924011.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19440 + ... + 19999.

It is an arithmetic number, because the mean of its divisors is an integer number (887400).

Almost surely, 2^11042920 is an apocalyptic number.

11042920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11042920 is an abundant number, since it is smaller than the sum of its proper divisors (17353880).

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

11042920 is a wasteful number, since it uses less digits than its factorization.

11042920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39457 (or 39453 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 11042920 is about 3323.0889244798. The cubic root of 11042920 is about 222.6868858656.

Adding to 11042920 its reverse (2924011), we get a palindrome (13966931).

The spelling of 11042920 in words is "eleven million, forty-two thousand, nine hundred twenty".