1043163220 has 48 divisors (see below), whose sum is σ = 2414478528. Its totient is φ = 375413760.

The previous prime is 1043163181. The next prime is 1043163221. The reversal of 1043163220 is 223613401.

1043163220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 1043163191 and 1043163200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1043163221) 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, 3102 + ... + 45781.

It is an arithmetic number, because the mean of its divisors is an integer number (50301636).

Almost surely, 2^1043163220 is an apocalyptic number.

1043163220 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 1043163220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1207239264).

1043163220 is an abundant number, since it is smaller than the sum of its proper divisors (1371315308).

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

1043163220 is a wasteful number, since it uses less digits than its factorization.

1043163220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49000 (or 48998 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1043163220 is about 32298.0374016750. The cubic root of 1043163220 is about 1014.1855584122.

Adding to 1043163220 its reverse (223613401), we get a palindrome (1266776621).

The spelling of 1043163220 in words is "one billion, forty-three million, one hundred sixty-three thousand, two hundred twenty".