342400424 has 8 divisors (see below), whose sum is σ = 642000810. Its totient is φ = 171200208.

The previous prime is 342400393. The next prime is 342400427. The reversal of 342400424 is 424004243.

It can be written as a sum of positive squares in only one way, i.e., 252492100 + 89908324 = 15890^2 + 9482^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 342400424.

It is not an unprimeable number, because it can be changed into a prime (342400427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21400019 + ... + 21400034.

Almost surely, 2^342400424 is an apocalyptic number.

It is an amenable number.

342400424 is a deficient number, since it is larger than the sum of its proper divisors (299600386).

342400424 is a wasteful number, since it uses less digits than its factorization.

342400424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42800059 (or 42800055 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 342400424 is about 18504.0650668981. The cubic root of 342400424 is about 699.5918872792.

Adding to 342400424 its reverse (424004243), we get a palindrome (766404667).

The spelling of 342400424 in words is "three hundred forty-two million, four hundred thousand, four hundred twenty-four".