1061532220 has 96 divisors (see below), whose sum is σ = 2643742080. Its totient is φ = 350438400.

The previous prime is 1061532217. The next prime is 1061532233. The reversal of 1061532220 is 222351601.

It is a super-2 number, since 2×1061532220² = 2253701308196256800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1061532191 and 1061532200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 522166 + ... + 524194.

It is an arithmetic number, because the mean of its divisors is an integer number (27538980).

Almost surely, 2^1061532220 is an apocalyptic number.

1061532220 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 1061532220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1321871040).

1061532220 is an abundant number, since it is smaller than the sum of its proper divisors (1582209860).

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

1061532220 is a wasteful number, since it uses less digits than its factorization.

1061532220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2183 (or 2181 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1061532220 is about 32581.1635765207. The cubic root of 1061532220 is about 1020.1038661371.

Adding to 1061532220 its reverse (222351601), we get a palindrome (1283883821).

The spelling of 1061532220 in words is "one billion, sixty-one million, five hundred thirty-two thousand, two hundred twenty".