1124420 has 48 divisors (see below), whose sum is σ = 2721600. Its totient is φ = 385920.

The previous prime is 1124377. The next prime is 1124423. The reversal of 1124420 is 244211.

It is a junction number, because it is equal to n+sod(n) for n = 1124395 and 1124404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1124423) 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, 4046 + ... + 4314.

It is an arithmetic number, because the mean of its divisors is an integer number (56700).

2^1124420 is an apocalyptic number.

1124420 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 1124420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1360800).

1124420 is an abundant number, since it is smaller than the sum of its proper divisors (1597180).

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

1124420 is a wasteful number, since it uses less digits than its factorization.

1124420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308 (or 306 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1124420 is about 1060.3867219086. The cubic root of 1124420 is about 103.9863147673.

Adding to 1124420 its reverse (244211), we get a palindrome (1368631).

It can be divided in two parts, 1 and 124420, that added together give a palindrome (124421).

The spelling of 1124420 in words is "one million, one hundred twenty-four thousand, four hundred twenty".