340012355 has 4 divisors (see below), whose sum is σ = 408014832. Its totient is φ = 272009880.

The previous prime is 340012349. The next prime is 340012357. The reversal of 340012355 is 553210043.

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

It is not a de Polignac number, because 340012355 - 2²⁴ = 323235139 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 340012355.

It is not an unprimeable number, because it can be changed into a prime (340012357) 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, 34001231 + ... + 34001240.

It is an arithmetic number, because the mean of its divisors is an integer number (102003708).

Almost surely, 2^340012355 is an apocalyptic number.

340012355 is a deficient number, since it is larger than the sum of its proper divisors (68002477).

340012355 is an equidigital number, since it uses as much as digits as its factorization.

340012355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68002476.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 340012355 is about 18439.4239335181. The cubic root of 340012355 is about 697.9616587177.

Adding to 340012355 its reverse (553210043), we get a palindrome (893222398).

The spelling of 340012355 in words is "three hundred forty million, twelve thousand, three hundred fifty-five".