342120256 has 14 divisors (see below), whose sum is σ = 678895010. Its totient is φ = 171060096.

The previous prime is 342120217. The next prime is 342120263. The reversal of 342120256 is 652021243.

It can be written as a sum of positive squares in only one way, i.e., 225480256 + 116640000 = 15016^2 + 10800^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 342120256.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2672751 + ... + 2672878.

Almost surely, 2^342120256 is an apocalyptic number.

It is an amenable number.

342120256 is a deficient number, since it is larger than the sum of its proper divisors (336774754).

342120256 is an equidigital number, since it uses as much as digits as its factorization.

342120256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5345641 (or 5345631 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 342120256 is about 18496.4930730125. The cubic root of 342120256 is about 699.4010223054.

Adding to 342120256 its reverse (652021243), we get a palindrome (994141499).

The spelling of 342120256 in words is "three hundred forty-two million, one hundred twenty thousand, two hundred fifty-six".