1220352 has 72 divisors (see below), whose sum is σ = 3728256. Its totient is φ = 347136.

The previous prime is 1220347. The next prime is 1220353. The reversal of 1220352 is 2530221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5263 + ... + 5489.

2^1220352 is an apocalyptic number.

1220352 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 1220352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1864128).

1220352 is an abundant number, since it is smaller than the sum of its proper divisors (2507904).

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

1220352 is an equidigital number, since it uses as much as digits as its factorization.

1220352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 1220352 is about 1104.6954331398. The cubic root of 1220352 is about 106.8632485968.

Adding to 1220352 its reverse (2530221), we get a palindrome (3750573).

The spelling of 1220352 in words is "one million, two hundred twenty thousand, three hundred fifty-two".