340240256 has 32 divisors (see below), whose sum is σ = 689326200. Its totient is φ = 167233024.

The previous prime is 340240247. The next prime is 340240301. The reversal of 340240256 is 652042043.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14975 + ... + 30078.

Almost surely, 2^340240256 is an apocalyptic number.

It is an amenable number.

340240256 is an abundant number, since it is smaller than the sum of its proper divisors (349085944).

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

340240256 is an equidigital number, since it uses as much as digits as its factorization.

340240256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45126 (or 45114 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 340240256 is about 18445.6026195947. The cubic root of 340240256 is about 698.1175654386.

Adding to 340240256 its reverse (652042043), we get a palindrome (992282299).

The spelling of 340240256 in words is "three hundred forty million, two hundred forty thousand, two hundred fifty-six".