342240400 has 30 divisors (see below), whose sum is σ = 822233522. Its totient is φ = 136896000.

The previous prime is 342240389. The next prime is 342240401. The reversal of 342240400 is 4042243.

It can be written as a sum of positive squares in 3 ways, for example, as 138384 + 342102016 = 372^2 + 18496^2 .

It is not an unprimeable number, because it can be changed into a prime (342240401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 427401 + ... + 428200.

Almost surely, 2^342240400 is an apocalyptic number.

It is an amenable number.

342240400 is an abundant number, since it is smaller than the sum of its proper divisors (479993122).

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

342240400 is a wasteful number, since it uses less digits than its factorization.

342240400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855619 (or 855608 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 342240400 is about 18499.7405387211. The cubic root of 342240400 is about 699.4828833865.

Adding to 342240400 its reverse (4042243), we get a palindrome (346282643).

The spelling of 342240400 in words is "three hundred forty-two million, two hundred forty thousand, four hundred".