340102643 has 16 divisors (see below), whose sum is σ = 359375616. Its totient is φ = 321409920.

The previous prime is 340102639. The next prime is 340102649. The reversal of 340102643 is 346201043.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 340102643 - 2² = 340102639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (340102649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 520505 + ... + 521157.

It is an arithmetic number, because the mean of its divisors is an integer number (22460976).

Almost surely, 2^340102643 is an apocalyptic number.

340102643 is a deficient number, since it is larger than the sum of its proper divisors (19272973).

340102643 is a wasteful number, since it uses less digits than its factorization.

340102643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 340102643 is about 18441.8720036769. The cubic root of 340102643 is about 698.0234329290.

Adding to 340102643 its reverse (346201043), we get a palindrome (686303686).

The spelling of 340102643 in words is "three hundred forty million, one hundred two thousand, six hundred forty-three".