340184387 has 4 divisors (see below), whose sum is σ = 340325856. Its totient is φ = 340042920.

The previous prime is 340184333. The next prime is 340184437. The reversal of 340184387 is 783481043.

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 340184387 - 2¹⁶ = 340118851 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 340184387.

It is not an unprimeable number, because it can be changed into a prime (340184087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67064 + ... + 71957.

It is an arithmetic number, because the mean of its divisors is an integer number (85081464).

Almost surely, 2^340184387 is an apocalyptic number.

340184387 is a deficient number, since it is larger than the sum of its proper divisors (141469).

340184387 is a wasteful number, since it uses less digits than its factorization.

340184387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141468.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 340184387 is about 18444.0881314312. The cubic root of 340184387 is about 698.0793519854.

The spelling of 340184387 in words is "three hundred forty million, one hundred eighty-four thousand, three hundred eighty-seven".