242002403 has 4 divisors (see below), whose sum is σ = 242966808. Its totient is φ = 241038000.

The previous prime is 242002393. The next prime is 242002427. The reversal of 242002403 is 304200242.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 304200242 = 2 ⋅152100121.

It is a cyclic number.

It is not a de Polignac number, because 242002403 - 2⁶ = 242002339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242002003) 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, 481826 + ... + 482327.

It is an arithmetic number, because the mean of its divisors is an integer number (60741702).

Almost surely, 2^242002403 is an apocalyptic number.

242002403 is a deficient number, since it is larger than the sum of its proper divisors (964405).

242002403 is an equidigital number, since it uses as much as digits as its factorization.

242002403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964404.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 242002403 is about 15556.4264212576. The cubic root of 242002403 is about 623.1700310646.

Adding to 242002403 its reverse (304200242), we get a palindrome (546202645).

The spelling of 242002403 in words is "two hundred forty-two million, two thousand, four hundred three".