340663403 has 8 divisors (see below), whose sum is σ = 352630272. Its totient is φ = 328841856.

The previous prime is 340663397. The next prime is 340663409. The reversal of 340663403 is 304366043.

It is an interprime number because it is at equal distance from previous prime (340663397) and next prime (340663409).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 340663403 - 2⁴ = 340663387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340663409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31550 + ... + 40947.

It is an arithmetic number, because the mean of its divisors is an integer number (44078784).

Almost surely, 2^340663403 is an apocalyptic number.

340663403 is a deficient number, since it is larger than the sum of its proper divisors (11966869).

340663403 is a wasteful number, since it uses less digits than its factorization.

340663403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72661.

The product of its (nonzero) digits is 15552, while the sum is 29.

The square root of 340663403 is about 18457.0691877123. The cubic root of 340663403 is about 698.4068551097.

The spelling of 340663403 in words is "three hundred forty million, six hundred sixty-three thousand, four hundred three".