340890359 has 4 divisors (see below), whose sum is σ = 349204800. Its totient is φ = 332575920.

The previous prime is 340890323. The next prime is 340890367. The reversal of 340890359 is 953098043.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 340890359 - 2²⁸ = 72454903 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 8314399 = 340890359 / (3 + 4 + 0 + 8 + 9 + 0 + 3 + 5 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340899359) 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, 4157159 + ... + 4157240.

It is an arithmetic number, because the mean of its divisors is an integer number (87301200).

Almost surely, 2^340890359 is an apocalyptic number.

340890359 is a deficient number, since it is larger than the sum of its proper divisors (8314441).

340890359 is an equidigital number, since it uses as much as digits as its factorization.

340890359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8314440.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 340890359 is about 18463.2163774354. The cubic root of 340890359 is about 698.5619176902.

The spelling of 340890359 in words is "three hundred forty million, eight hundred ninety thousand, three hundred fifty-nine".