340424643 has 48 divisors (see below), whose sum is σ = 526196736. Its totient is φ = 194987520.

The previous prime is 340424603. The next prime is 340424647. The reversal of 340424643 is 346424043.

It is not a de Polignac number, because 340424643 - 2⁹ = 340424131 is a prime.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 340424643.

It is not an unprimeable number, because it can be changed into a prime (340424647) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1094458 + ... + 1094768.

It is an arithmetic number, because the mean of its divisors is an integer number (10962432).

Almost surely, 2^340424643 is an apocalyptic number.

340424643 is a deficient number, since it is larger than the sum of its proper divisors (185772093).

340424643 is a wasteful number, since it uses less digits than its factorization.

340424643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484 (or 471 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 30.

The square root of 340424643 is about 18450.6000715424. The cubic root of 340424643 is about 698.2436533575.

Adding to 340424643 its reverse (346424043), we get a palindrome (686848686).

The spelling of 340424643 in words is "three hundred forty million, four hundred twenty-four thousand, six hundred forty-three".