1124220 has 48 divisors (see below), whose sum is σ = 3231648. Its totient is φ = 291840.

The previous prime is 1124219. The next prime is 1124239. The reversal of 1124220 is 224211.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 1124196 and 1124205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2232 + ... + 2688.

It is an arithmetic number, because the mean of its divisors is an integer number (67326).

2^1124220 is an apocalyptic number.

1124220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1124220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1615824).

1124220 is an abundant number, since it is smaller than the sum of its proper divisors (2107428).

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

1124220 is a wasteful number, since it uses less digits than its factorization.

1124220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510 (or 508 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1124220 is about 1060.2924124976. The cubic root of 1124220 is about 103.9801490712.

Adding to 1124220 its reverse (224211), we get a palindrome (1348431).

Subtracting from 1124220 its reverse (224211), we obtain a palindrome (900009).

The spelling of 1124220 in words is "one million, one hundred twenty-four thousand, two hundred twenty".