340397056 has 88 divisors (see below), whose sum is σ = 722181600. Its totient is φ = 160038912.

The previous prime is 340397011. The next prime is 340397059. The reversal of 340397056 is 650793043.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (340397059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2284470 + ... + 2284618.

Almost surely, 2^340397056 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 340397056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (361090800).

340397056 is an abundant number, since it is smaller than the sum of its proper divisors (381784544).

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

340397056 is a wasteful number, since it uses less digits than its factorization.

340397056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289 (or 271 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 37.

The square root of 340397056 is about 18449.8524655348. The cubic root of 340397056 is about 698.2247916520.

The spelling of 340397056 in words is "three hundred forty million, three hundred ninety-seven thousand, fifty-six".