1223001450 has 144 divisors (see below), whose sum is σ = 3704762880. Its totient is φ = 296445600.

The previous prime is 1223001433. The next prime is 1223001457. The reversal of 1223001450 is 541003221.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1223001457) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 159607 + ... + 167093.

It is an arithmetic number, because the mean of its divisors is an integer number (25727520).

Almost surely, 2^1223001450 is an apocalyptic number.

1223001450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1223001450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1852381440).

1223001450 is an abundant number, since it is smaller than the sum of its proper divisors (2481761430).

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

1223001450 is a wasteful number, since it uses less digits than its factorization.

1223001450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7530 (or 7508 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1223001450 is about 34971.4376313013. The cubic root of 1223001450 is about 1069.4052798961.

Adding to 1223001450 its reverse (541003221), we get a palindrome (1764004671).

The spelling of 1223001450 in words is "one billion, two hundred twenty-three million, one thousand, four hundred fifty".