1220424244 has 48 divisors (see below), whose sum is σ = 2380976640. Its totient is φ = 543553920.

The previous prime is 1220424223. The next prime is 1220424253. The reversal of 1220424244 is 4424240221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 713262 + ... + 714970.

It is an arithmetic number, because the mean of its divisors is an integer number (49603680).

Almost surely, 2^1220424244 is an apocalyptic number.

It is an amenable number.

1220424244 is a deficient number, since it is larger than the sum of its proper divisors (1160552396).

1220424244 is a wasteful number, since it uses less digits than its factorization.

1220424244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2200 (or 2198 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 25.

The square root of 1220424244 is about 34934.5709004705. The cubic root of 1220424244 is about 1068.6535729880.

Adding to 1220424244 its reverse (4424240221), we get a palindrome (5644664465).

The spelling of 1220424244 in words is "one billion, two hundred twenty million, four hundred twenty-four thousand, two hundred forty-four".