11020420 has 24 divisors (see below), whose sum is σ = 24504984. Its totient is φ = 4148736.

The previous prime is 11020411. The next prime is 11020423. The reversal of 11020420 is 2402011.

It can be written as a sum of positive squares in 4 ways, for example, as 4700224 + 6320196 = 2168^2 + 2514^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 11020397 and 11020406.

It is not an unprimeable number, because it can be changed into a prime (11020423) by changing a digit.

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, 15867 + ... + 16546.

It is an arithmetic number, because the mean of its divisors is an integer number (1021041).

Almost surely, 2^11020420 is an apocalyptic number.

11020420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11020420 is an abundant number, since it is smaller than the sum of its proper divisors (13484564).

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

11020420 is a wasteful number, since it uses less digits than its factorization.

11020420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32439 (or 32437 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 11020420 is about 3319.7017938363. The cubic root of 11020420 is about 222.5355411811.

Adding to 11020420 its reverse (2402011), we get a palindrome (13422431).

It can be divided in two parts, 110204 and 20, that added together give a square (110224 = 332²).

The spelling of 11020420 in words is "eleven million, twenty thousand, four hundred twenty".