142400203424 has 24 divisors (see below), whose sum is σ = 280385900928. Its totient is φ = 71191085760.

The previous prime is 142400203417. The next prime is 142400203427. The reversal of 142400203424 is 424302004241.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 142400203393 and 142400203402.

It is not an unprimeable number, because it can be changed into a prime (142400203427) 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 in 3 ways as a sum of consecutive naturals, for example, 21392 + ... + 534095.

It is an arithmetic number, because the mean of its divisors is an integer number (11682745872).

Almost surely, 2^142400203424 is an apocalyptic number.

It is an amenable number.

142400203424 is a deficient number, since it is larger than the sum of its proper divisors (137985697504).

142400203424 is an equidigital number, since it uses as much as digits as its factorization.

142400203424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563508 (or 563500 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 142400203424 its reverse (424302004241), we get a palindrome (566702207665).

The spelling of 142400203424 in words is "one hundred forty-two billion, four hundred million, two hundred three thousand, four hundred twenty-four".