11054220 has 48 divisors (see below), whose sum is σ = 32024160. Its totient is φ = 2845696.

The previous prime is 11054209. The next prime is 11054227. The reversal of 11054220 is 2245011.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 11054220.

It is not an unprimeable number, because it can be changed into a prime (11054227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1437 + ... + 4916.

It is an arithmetic number, because the mean of its divisors is an integer number (667170).

Almost surely, 2^11054220 is an apocalyptic number.

11054220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11054220 is an abundant number, since it is smaller than the sum of its proper divisors (20969940).

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

11054220 is a wasteful number, since it uses less digits than its factorization.

11054220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6394 (or 6392 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 11054220 is about 3324.7887150915. The cubic root of 11054220 is about 222.7628169896.

Adding to 11054220 its reverse (2245011), we get a palindrome (13299231).

The spelling of 11054220 in words is "eleven million, fifty-four thousand, two hundred twenty".