340191855 has 12 divisors (see below), whose sum is σ = 589665960. Its totient is φ = 181435632.

The previous prime is 340191833. The next prime is 340191869. The reversal of 340191855 is 558191043.

It is not a de Polignac number, because 340191855 - 2¹² = 340187759 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3779865 + ... + 3779954.

It is an arithmetic number, because the mean of its divisors is an integer number (49138830).

Almost surely, 2^340191855 is an apocalyptic number.

340191855 is a deficient number, since it is larger than the sum of its proper divisors (249474105).

340191855 is a wasteful number, since it uses less digits than its factorization.

340191855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7559830 (or 7559827 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 340191855 is about 18444.2905800142. The cubic root of 340191855 is about 698.0844602136.

The spelling of 340191855 in words is "three hundred forty million, one hundred ninety-one thousand, eight hundred fifty-five".