242656403 has 4 divisors (see below), whose sum is σ = 264716088. Its totient is φ = 220596720.

The previous prime is 242656373. The next prime is 242656411. The reversal of 242656403 is 304656242.

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

It is a cyclic number.

It is not a de Polignac number, because 242656403 - 2¹² = 242652307 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 242656403.

It is not an unprimeable number, because it can be changed into a prime (242656423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11029826 + ... + 11029847.

It is an arithmetic number, because the mean of its divisors is an integer number (66179022).

Almost surely, 2^242656403 is an apocalyptic number.

242656403 is a deficient number, since it is larger than the sum of its proper divisors (22059685).

242656403 is a wasteful number, since it uses less digits than its factorization.

242656403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22059684.

The product of its (nonzero) digits is 34560, while the sum is 32.

The square root of 242656403 is about 15577.4324906257. The cubic root of 242656403 is about 623.7308886077.

The spelling of 242656403 in words is "two hundred forty-two million, six hundred fifty-six thousand, four hundred three".