1223075448 has 192 divisors, whose sum is σ = 4007328000. Its totient is φ = 329204736.

The previous prime is 1223075431. The next prime is 1223075461. The reversal of 1223075448 is 8445703221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3226923 + ... + 3227301.

It is an arithmetic number, because the mean of its divisors is an integer number (20871500).

Almost surely, 2^1223075448 is an apocalyptic number.

1223075448 is a gapful number since it is divisible by the number (18) 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 1223075448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2003664000).

1223075448 is an abundant number, since it is smaller than the sum of its proper divisors (2784252552).

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

1223075448 is a wasteful number, since it uses less digits than its factorization.

1223075448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754 (or 747 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 1223075448 is about 34972.4955929656. The cubic root of 1223075448 is about 1069.4268476699.

Adding to 1223075448 its reverse (8445703221), we get a palindrome (9668778669).

It can be divided in two parts, 12230 and 75448, that added together give a palindrome (87678).

The spelling of 1223075448 in words is "one billion, two hundred twenty-three million, seventy-five thousand, four hundred forty-eight".