242440402 has 4 divisors (see below), whose sum is σ = 363660606. Its totient is φ = 121220200.

The previous prime is 242440369. The next prime is 242440459. The reversal of 242440402 is 204044242.

242440402 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 204044242 = 2 ⋅102022121.

It can be written as a sum of positive squares in only one way, i.e., 239909121 + 2531281 = 15489^2 + 1591^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60610099 + ... + 60610102.

Almost surely, 2^242440402 is an apocalyptic number.

242440402 is a deficient number, since it is larger than the sum of its proper divisors (121220204).

242440402 is a wasteful number, since it uses less digits than its factorization.

242440402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121220203.

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 242440402 is about 15570.4978083554. The cubic root of 242440402 is about 623.5457619712.

Adding to 242440402 its reverse (204044242), we get a palindrome (446484644).

The spelling of 242440402 in words is "two hundred forty-two million, four hundred forty thousand, four hundred two".