1220348 has 12 divisors (see below), whose sum is σ = 2166192. Its totient is φ = 601440.

The previous prime is 1220347. The next prime is 1220353. The reversal of 1220348 is 8430221.

It is a super-2 number, since 2×1220348² = 2978498482208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1865 + ... + 2432.

It is an arithmetic number, because the mean of its divisors is an integer number (180516).

2^1220348 is an apocalyptic number.

It is an amenable number.

1220348 is a deficient number, since it is larger than the sum of its proper divisors (945844).

1220348 is a wasteful number, since it uses less digits than its factorization.

1220348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4372 (or 4370 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1220348 is about 1104.6936226846. The cubic root of 1220348 is about 106.8631318399.

Adding to 1220348 its reverse (8430221), we get a palindrome (9650569).

The spelling of 1220348 in words is "one million, two hundred twenty thousand, three hundred forty-eight".