340450256 has 30 divisors (see below), whose sum is σ = 683179302. Its totient is φ = 164348800.

The previous prime is 340450247. The next prime is 340450289. The reversal of 340450256 is 652054043.

It can be written as a sum of positive squares in 3 ways, for example, as 75411856 + 265038400 = 8684^2 + 16280^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 806 + ... + 26106.

Almost surely, 2^340450256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 340450256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (341589651).

340450256 is an abundant number, since it is smaller than the sum of its proper divisors (342729046).

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

340450256 is a wasteful number, since it uses less digits than its factorization.

340450256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25367 (or 25332 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 340450256 is about 18451.2941551535. The cubic root of 340450256 is about 698.2611644930.

The spelling of 340450256 in words is "three hundred forty million, four hundred fifty thousand, two hundred fifty-six".