340999991 has 8 divisors (see below), whose sum is σ = 361803024. Its totient is φ = 320279680.

The previous prime is 340999961. The next prime is 341000021. The reversal of 340999991 is 199999043.

It is an interprime number because it is at equal distance from previous prime (340999961) and next prime (341000021).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 340999991 - 2¹⁴ = 340983607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340999921) 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 7 ways as a sum of consecutive naturals, for example, 12080 + ... + 28773.

It is an arithmetic number, because the mean of its divisors is an integer number (45225378).

Almost surely, 2^340999991 is an apocalyptic number.

340999991 is a deficient number, since it is larger than the sum of its proper divisors (20803033).

340999991 is a wasteful number, since it uses less digits than its factorization.

340999991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41361.

The product of its (nonzero) digits is 708588, while the sum is 53.

The square root of 340999991 is about 18466.1850689307. The cubic root of 340999991 is about 698.6367966354.

The spelling of 340999991 in words is "three hundred forty million, nine hundred ninety-nine thousand, nine hundred ninety-one".