242330403 has 16 divisors (see below), whose sum is σ = 370607360. Its totient is φ = 137971296.

The previous prime is 242330399. The next prime is 242330443. The reversal of 242330403 is 304033242.

It is not a de Polignac number, because 242330403 - 2² = 242330399 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

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 242330403.

It is not an unprimeable number, because it can be changed into a prime (242330443) 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, 15013 + ... + 26646.

It is an arithmetic number, because the mean of its divisors is an integer number (23162960).

Almost surely, 2^242330403 is an apocalyptic number.

242330403 is a deficient number, since it is larger than the sum of its proper divisors (128276957).

242330403 is a wasteful number, since it uses less digits than its factorization.

242330403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41946.

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 242330403 is about 15566.9651184809. The cubic root of 242330403 is about 623.4514435522.

Adding to 242330403 its reverse (304033242), we get a palindrome (546363645).

The spelling of 242330403 in words is "two hundred forty-two million, three hundred thirty thousand, four hundred three".