1200243424 has 12 divisors (see below), whose sum is σ = 2362979304. Its totient is φ = 600121696.

The previous prime is 1200243397. The next prime is 1200243439. The reversal of 1200243424 is 4243420021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1200243395 and 1200243404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18753772 + ... + 18753835.

It is an arithmetic number, because the mean of its divisors is an integer number (196914942).

Almost surely, 2^1200243424 is an apocalyptic number.

It is an amenable number.

1200243424 is a deficient number, since it is larger than the sum of its proper divisors (1162735880).

1200243424 is an equidigital number, since it uses as much as digits as its factorization.

1200243424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37507617 (or 37507609 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 1200243424 is about 34644.5294960113. The cubic root of 1200243424 is about 1062.7304189355.

Adding to 1200243424 its reverse (4243420021), we get a palindrome (5443663445).

The spelling of 1200243424 in words is "one billion, two hundred million, two hundred forty-three thousand, four hundred twenty-four".