340111493 has 4 divisors (see below), whose sum is σ = 340326060. Its totient is φ = 339896928.

The previous prime is 340111481. The next prime is 340111531. The reversal of 340111493 is 394111043.

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

It can be written as a sum of positive squares in 2 ways, for example, as 220908769 + 119202724 = 14863^2 + 10918^2 .

It is a cyclic number.

It is not a de Polignac number, because 340111493 - 2⁴ = 340111477 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 (340110493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104888 + ... + 108081.

It is an arithmetic number, because the mean of its divisors is an integer number (85081515).

Almost surely, 2^340111493 is an apocalyptic number.

It is an amenable number.

340111493 is a deficient number, since it is larger than the sum of its proper divisors (214567).

340111493 is a wasteful number, since it uses less digits than its factorization.

340111493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214566.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 340111493 is about 18442.1119452193. Note that the first 3 decimals coincide. The cubic root of 340111493 is about 698.0294874284.

The spelling of 340111493 in words is "three hundred forty million, one hundred eleven thousand, four hundred ninety-three".