340220797 has 4 divisors (see below), whose sum is σ = 388823776. Its totient is φ = 291617820.

The previous prime is 340220791. The next prime is 340220819. The reversal of 340220797 is 797022043.

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, and also an emirpimes, since its reverse is a distinct semiprime: 797022043 = 3931 ⋅202753.

It is a cyclic number.

It is not a de Polignac number, because 340220797 - 2¹⁹ = 339696509 is a prime.

It is a super-2 number, since 2×340220797² = 231500381422630418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340220791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24301479 + ... + 24301492.

It is an arithmetic number, because the mean of its divisors is an integer number (97205944).

Almost surely, 2^340220797 is an apocalyptic number.

It is an amenable number.

340220797 is a deficient number, since it is larger than the sum of its proper divisors (48602979).

340220797 is an equidigital number, since it uses as much as digits as its factorization.

340220797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48602978.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 340220797 is about 18445.0751421619. The cubic root of 340220797 is about 698.1042562858.

The spelling of 340220797 in words is "three hundred forty million, two hundred twenty thousand, seven hundred ninety-seven".