340796257 has 4 divisors (see below), whose sum is σ = 344902320. Its totient is φ = 336690196.

The previous prime is 340796249. The next prime is 340796303. The reversal of 340796257 is 752697043.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 340796257 - 2³ = 340796249 is a prime.

It is a super-2 number, since 2×340796257² = 232284177570420098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340796207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2052907 + ... + 2053072.

It is an arithmetic number, because the mean of its divisors is an integer number (86225580).

Almost surely, 2^340796257 is an apocalyptic number.

It is an amenable number.

340796257 is a deficient number, since it is larger than the sum of its proper divisors (4106063).

340796257 is an equidigital number, since it uses as much as digits as its factorization.

340796257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4106062.

The product of its (nonzero) digits is 317520, while the sum is 43.

The square root of 340796257 is about 18460.6678373238. The cubic root of 340796257 is about 698.4976329707.

The spelling of 340796257 in words is "three hundred forty million, seven hundred ninety-six thousand, two hundred fifty-seven".