1223144244 has 72 divisors (see below), whose sum is σ = 3537031680. Its totient is φ = 349123392.

The previous prime is 1223144213. The next prime is 1223144303. The reversal of 1223144244 is 4424413221.

1223144244 is a `hidden beast` number, since 1 + 2 + 231 + 4 + 424 + 4 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 360942 + ... + 364314.

It is an arithmetic number, because the mean of its divisors is an integer number (49125440).

Almost surely, 2^1223144244 is an apocalyptic number.

1223144244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1223144244 is an abundant number, since it is smaller than the sum of its proper divisors (2313887436).

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

1223144244 is a wasteful number, since it uses less digits than its factorization.

1223144244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4829 (or 4824 counting only the distinct ones).

The product of its digits is 6144, while the sum is 27.

The square root of 1223144244 is about 34973.4791520661. The cubic root of 1223144244 is about 1069.4468984662.

Adding to 1223144244 its reverse (4424413221), we get a palindrome (5647557465).

The spelling of 1223144244 in words is "one billion, two hundred twenty-three million, one hundred forty-four thousand, two hundred forty-four".