1124442020 has 48 divisors (see below), whose sum is σ = 2571594480. Its totient is φ = 410505216.

The previous prime is 1124442019. The next prime is 1124442031. The reversal of 1124442020 is 202444211.

It can be written as a sum of positive squares in 8 ways, for example, as 152374336 + 972067684 = 12344^2 + 31178^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1124441983 and 1124442001.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1157 + ... + 47436.

It is an arithmetic number, because the mean of its divisors is an integer number (53574885).

Almost surely, 2^1124442020 is an apocalyptic number.

1124442020 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 1124442020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1285797240).

1124442020 is an abundant number, since it is smaller than the sum of its proper divisors (1447152460).

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

1124442020 is a wasteful number, since it uses less digits than its factorization.

1124442020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48704 (or 48702 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 1124442020 is about 33532.7007561276. The cubic root of 1124442020 is about 1039.8699356577.

Adding to 1124442020 its reverse (202444211), we get a palindrome (1326886231).

The spelling of 1124442020 in words is "one billion, one hundred twenty-four million, four hundred forty-two thousand, twenty".