340303563 has 12 divisors (see below), whose sum is σ = 499881720. Its totient is φ = 223023456.

The previous prime is 340303517. The next prime is 340303573. The reversal of 340303563 is 365303043.

It is not a de Polignac number, because 340303563 - 2¹⁴ = 340287179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (340303573) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 319906 + ... + 320967.

It is an arithmetic number, because the mean of its divisors is an integer number (41656810).

Almost surely, 2^340303563 is an apocalyptic number.

340303563 is a deficient number, since it is larger than the sum of its proper divisors (159578157).

340303563 is a wasteful number, since it uses less digits than its factorization.

340303563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640938 (or 640935 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 27.

The square root of 340303563 is about 18447.3185856373. The cubic root of 340303563 is about 698.1608613030.

The spelling of 340303563 in words is "three hundred forty million, three hundred three thousand, five hundred sixty-three".