1220344234 has 4 divisors (see below), whose sum is σ = 1830516354. Its totient is φ = 610172116.

The previous prime is 1220344207. The next prime is 1220344241. The reversal of 1220344234 is 4324430221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4324430221 = 641 ⋅6746381.

It can be written as a sum of positive squares in only one way, i.e., 1085900209 + 134444025 = 32953^2 + 11595^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1220344199 and 1220344208.

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 as a sum of consecutive naturals, namely, 305086057 + ... + 305086060.

Almost surely, 2^1220344234 is an apocalyptic number.

1220344234 is a deficient number, since it is larger than the sum of its proper divisors (610172120).

1220344234 is an equidigital number, since it uses as much as digits as its factorization.

1220344234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610172119.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 1220344234 is about 34933.4257409719. The cubic root of 1220344234 is about 1068.6302191307.

Adding to 1220344234 its reverse (4324430221), we get a palindrome (5544774455).

The spelling of 1220344234 in words is "one billion, two hundred twenty million, three hundred forty-four thousand, two hundred thirty-four".