1220441352 has 64 divisors (see below), whose sum is σ = 3299640960. Its totient is φ = 373939200.

The previous prime is 1220441323. The next prime is 1220441357. The reversal of 1220441352 is 2531440221.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1220441357) 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, 67077 + ... + 83307.

It is an arithmetic number, because the mean of its divisors is an integer number (51556890).

Almost surely, 2^1220441352 is an apocalyptic number.

1220441352 is a gapful number since it is divisible by the number (12) 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 1220441352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1649820480).

1220441352 is an abundant number, since it is smaller than the sum of its proper divisors (2079199608).

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

1220441352 is a wasteful number, since it uses less digits than its factorization.

1220441352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16494 (or 16490 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1220441352 is about 34934.8157573501. The cubic root of 1220441352 is about 1068.6585664538.

Adding to 1220441352 its reverse (2531440221), we get a palindrome (3751881573).

The spelling of 1220441352 in words is "one billion, two hundred twenty million, four hundred forty-one thousand, three hundred fifty-two".