1200544342 has 4 divisors (see below), whose sum is σ = 1800816516. Its totient is φ = 600272170.

The previous prime is 1200544339. The next prime is 1200544343. The reversal of 1200544342 is 2434450021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2434450021 = 2087 ⋅1166483.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200544343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300136084 + ... + 300136087.

It is an arithmetic number, because the mean of its divisors is an integer number (450204129).

Almost surely, 2^1200544342 is an apocalyptic number.

1200544342 is a deficient number, since it is larger than the sum of its proper divisors (600272174).

1200544342 is an equidigital number, since it uses as much as digits as its factorization.

1200544342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600272173.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 1200544342 is about 34648.8721605769. The cubic root of 1200544342 is about 1062.8192253625.

Adding to 1200544342 its reverse (2434450021), we get a palindrome (3634994363).

The spelling of 1200544342 in words is "one billion, two hundred million, five hundred forty-four thousand, three hundred forty-two".