1200423224 has 128 divisors (see below), whose sum is σ = 3043353600. Its totient is φ = 431233920.

The previous prime is 1200423179. The next prime is 1200423241. The reversal of 1200423224 is 4223240021.

It is a junction number, because it is equal to n+sod(n) for n = 1200423196 and 1200423205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1352909 + ... + 1353795.

It is an arithmetic number, because the mean of its divisors is an integer number (23776200).

Almost surely, 2^1200423224 is an apocalyptic number.

1200423224 is a gapful number since it is divisible by the number (14) 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 1200423224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1521676800).

1200423224 is an abundant number, since it is smaller than the sum of its proper divisors (1842930376).

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

1200423224 is a wasteful number, since it uses less digits than its factorization.

1200423224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950 (or 920 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 1200423224 is about 34647.1243251154. The cubic root of 1200423224 is about 1062.7834830015.

Adding to 1200423224 its reverse (4223240021), we get a palindrome (5423663245).

It can be divided in two parts, 1200 and 423224, that added together give a palindrome (424424).

The spelling of 1200423224 in words is "one billion, two hundred million, four hundred twenty-three thousand, two hundred twenty-four".