1220442032 has 80 divisors (see below), whose sum is σ = 2507250240. Its totient is φ = 574672896.

The previous prime is 1220442017. The next prime is 1220442071. The reversal of 1220442032 is 2302440221.

It is a junction number, because it is equal to n+sod(n) for n = 1220441995 and 1220442013.

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 15 ways as a sum of consecutive naturals, for example, 4640333 + ... + 4640595.

It is an arithmetic number, because the mean of its divisors is an integer number (31340628).

Almost surely, 2^1220442032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1220442032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1253625120).

1220442032 is an abundant number, since it is smaller than the sum of its proper divisors (1286808208).

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

1220442032 is a wasteful number, since it uses less digits than its factorization.

1220442032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510 (or 504 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 1220442032 is about 34934.8254897602. The cubic root of 1220442032 is about 1068.6587649305.

Adding to 1220442032 its reverse (2302440221), we get a palindrome (3522882253).

The spelling of 1220442032 in words is "one billion, two hundred twenty million, four hundred forty-two thousand, thirty-two".