2402242143242 has 4 divisors (see below), whose sum is σ = 3603363214866. Its totient is φ = 1201121071620.

The previous prime is 2402242143199. The next prime is 2402242143269. The reversal of 2402242143242 is 2423412422042.

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

It can be written as a sum of positive squares in only one way, i.e., 1582762770241 + 819479373001 = 1258079^2 + 905251^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2402242143199 and 2402242143208.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600560535809 + ... + 600560535812.

Almost surely, 2^{2402242143242} is an apocalyptic number.

2402242143242 is a deficient number, since it is larger than the sum of its proper divisors (1201121071624).

2402242143242 is a wasteful number, since it uses less digits than its factorization.

2402242143242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201121071623.

The product of its (nonzero) digits is 49152, while the sum is 32.

Adding to 2402242143242 its reverse (2423412422042), we get a palindrome (4825654565284).

The spelling of 2402242143242 in words is "two trillion, four hundred two billion, two hundred forty-two million, one hundred forty-three thousand, two hundred forty-two".